Number Systems Milestones Study Questions
Transcription
Number Systems Milestones Study Questions
Name _______________________________________ Date __________________ Class __________________ 6.NS.1 SELECTED RESPONSE 4. Divide. Select the correct answer. 7 cup of sour cream to make 8 1 tacos. If each taco requires cup of 16 sour cream, how many tacos can you make? 1. You have 3 17 7 19 3 133 51 133 57 119 119 57 5. Nima uses 2 1 cup peanuts, cup 3 2 3 cup pecans, and some 4 1 raisins in a recipe that makes 2 cups of 4 trail mix. How many cups of peanuts are there per cup of trail mix? cashews, 7 taco 128 14 tacos 1 taco 14 2 9 8 27 15 tacos 3 9 27 8 2. How many 1 -cup servings are there in 2 6. Jerry is tiling the wall behind his sink. The tiles he’s using are square with sides that 3 measure 1 inches. If the area of wall 4 3 he’s tiling is 42 inches long and 29 4 inches high, how many tiles will he need? 7 cup of peanut butter? 8 1 16 4 7 7 16 1 3 4 17 24 3. Carl wants to plant a garden that is 1 1 yards long and has an area of 2 1 3 square yards. How wide should the 2 garden be? 3 yard 7 2 1 yards 3 2 yards 5 1 yards 4 408 1249 1 2 CONSTRUCTED RESPONSE 7. The following division is being performed using multiplication by the reciprocal. Find the missing numbers. 5 ? 5 12 3 12 ? 1 10 ? ________________________________________ ________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 13 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 8. Ida is cutting a 11 -foot wooden board 12 10. Juan was presented with the following 3 5 problem on a math test: “Divide by . 7 4 Show your work.” His work is shown below. What was Juan’s error? Correct his work and state the correct quotient. 3 -foot sections to do some detail 16 work on a model she is building. How 3 many whole -foot sections are there in 16 11 the -foot wooden board? Explain your 12 answer and show your work. into 5 3 5 7 4 7 ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ 9. Baruka has 4 20 3 21 ________________________________________ 1 gallon of milk left in the 2 11. Consider the division statement fridge. 1 7 . 4 16 a. Describe a real world situation that might involve this expression. 5 -gallon (10-ounce) 64 servings of milk does she have left? Show your work. a. How many ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ b. If she drinks 10 ounces of milk a day, how many days of milk does she have left? Explain. b. Find the quotient. ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ c. Interpret the quotient in terms of the situation you described in part a. ________________________________________ ________________________________________ ________________________________________ ________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 14 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 6.NS.2 SELECTED RESPONSE CONSTRUCTED RESPONSE Select the correct answer. 6. A skyscraper with 102 floors is 1,326 feet tall. Each floor is the same height. How tall is each floor? Show your work. 1. Divide. 196 28 6 6 R27 ________________________________________ 7 R1 ________________________________________ 7 ________________________________________ 2. Divide. 98 308 ________________________________________ 3 ________________________________________ 3 R14 4 7. An apple orchard harvested 3,584 apples and separated them evenly into 112 bags. 14 R3 3. An art teacher has 192 containers of paint for 17 students. If the teacher wants to provide each student with an equal number of containers, how many containers will be left over? a. How many apples are in each bag? ________________________________________ ________________________________________ 0 ________________________________________ 5 b. If 56 apples were placed in each bag instead, how many bags would be left over? 7 18 4. A local theater can seat 2,254 people. The seats are arranged into 98 rows. Each row has the same number of seats. How many seats are there in each row? 15 23 20 32 ________________________________________ ________________________________________ ________________________________________ 8. A movie streaming service charges its customers $15 a month. Martina has $98 saved up. Will she have any money left over if she pays for the maximum amount of months she can afford? Explain. Select all correct answers. 5. The event staff for a local concert hall has 73 tickets to sell. If they sell all of the tickets at the same price, they will have $438. Which of the following people have enough money to buy a ticket? ________________________________________ ________________________________________ Celia has $4.50. ________________________________________ Louis has $7.00. Jan has $6.50. ________________________________________ Nicola has $6.00. ________________________________________ Chuck has $5.00. Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 15 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 9. Maurice says that 1079 62 is 16 with a remainder of 87. b. How many groups should there be? Will all the groups have the same number of students? Explain. a. Without seeing his work, how can you tell Maurice divided incorrectly? ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ 11. b. Maurice is correct about this fact: 16 62 87 1079. Explain how you can use that fact to find the correct quotient and remainder for 1079 62 without actually dividing. Then find the quotient. a. Find 117 13, 118 13, and 119 13. ________________________________________ ________________________________________ ________________________________________ b. Without dividing, what is the quotient of 120 13? Use the pattern you found in the first three problems to explain you answer. ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ 10. The administrator of the school is dividing 342 students into 38 groups to do a teambuilding exercise. One of the guidance counselors says that the exercise will be most effective if there are 7 or fewer students in a group. ________________________________________ ________________________________________ c. According to the pattern, 130 13 should be 9 with a remainder of 13. Explain why that is incorrect and find the correct quotient. a. Explain why the administrator’s plan is not as effective as it can be. ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 14 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 6.NS.3 3. Multiply. 1.8762 4.2 SELECTED RESPONSE Select the correct answer. 7.88004 1. Add. 13.389 1.24 78.8004 13.513 788.004 14.529 7,880.04 14.62 4. Divide. 0.09975 0.007 14.629 1.425 2. Subtract. 102.596 10.478 14.25 92.118 142.5 92.128 1,425 112.122 192.118 Match each multiplication expression with its product. A 376,236 ____ 5. 2.986 1.26 ____ 6. 0.2986 0.126 B 37,623.6 ____ 7. 29.86 12.6 C 3,762.36 ____ 8. 298.6 126 D 376.236 ____ 9. 2.986 12.6 E 37.6236 ____ 10. 2,986 126 F 3.76236 ____ 11. 298.6 12.6 G 0.376236 ____ 12. 2.986 0.126 H 0.0376236 CONSTRUCTED RESPONSE 13. Elsa has $45.78 in her savings account and $21.38 in her wallet. a. How much money does Elsa have? ________________________________________________________________________________________ ________________________________________________________________________________________ b. If Elsa puts half of the money in her wallet in the bank, how much money will she have in her savings account? ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 15 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 14. Mariposa needs a number of 0.3125-inch strips of wood for a model she is building. How many of these strips can she get from a 5.625-inch wooden board? Show your work. 17. Shen earns $9.60 per hour at his part-time job. Last month, he worked 7.25 hours the first week, 8.75 hours the second week, 5.5 hours the third week, and 6.75 hours the fourth week. Shen puts half of his paycheck in the bank every other week starting with the first. ________________________________________ a. How much money did Shen earn each week? ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ 15. Jean-Paul incorrectly states that 4.2874 1.286 4.416. His work is shown below. Explain Jean-Paul’s mistake and correct his work. 1 1 ________________________________________ b. How much money did he have in the bank at the end of last month? Show your work. 1 4. 2 8 7 4 1. 2 8 6 ________________________________________ 4. 4 1 6 0 ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ c. How much money did Shen have to spend from his 4 paychecks? Show your work. ________________________________________ ________________________________________ 16. At a local gas station, regular gasoline sells for $3.499 per gallon, while premium gasoline sells for $3.879 per gallon. ________________________________________ ________________________________________ a. Find the difference in price between the two types of gasoline. 18. Pablo wants to buy a steak at the grocery store. He has two options. The first is 1.37 pounds and costs $9.59. The second is 1.75 pounds and costs $10.85. Which is the better buy? Explain. ________________________________________ ________________________________________ b. How much does a person save on 15.25 gallons of gas by buying regular instead of premium? Show your work, and round your answer to the nearest whole cent. ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 19 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 6.NS.4 SELECTED RESPONSE CONSTRUCTED RESPONSE Select the correct answer. 6. Is it possible to use the distributive property to rewrite 85 99 as a product of a whole number greater than 1 and a sum of two whole numbers? Explain your answer. 1. Find the greatest common factor of 12 and 18. 1 2 3 ________________________________________ 6 ________________________________________ 2. Find the least common multiple of 8 and 10. ________________________________________ 32 ________________________________________ 40 ________________________________________ 50 7. Charlie and Dasha are roommates, and they have a dog. If neither of them is home, they hire someone to watch the dog. Charlie must go on business trips every 6 months, while Dasha must go on business trips every 9 months. If they both just got back from business trips, how many months will it be before they need to hire someone to look after the dog again? Explain your answer. 80 3. Find the greatest common factor of 7 and 11. 1 7 11 77 4. Find the least common multiple of 6 and 12. ________________________________________ 6 ________________________________________ 12 ________________________________________ 24 ________________________________________ 72 ________________________________________ 5. Factor out the greatest common factor of the expression below using the distributive property. 8. Salvatore is making some party favors for his birthday party. He has 96 pencils and 80 boxes of raisins. He wants each party favor to be the same, and he wants to use all of the pencils and raisins. Find the GCF of 96 and 80 to figure out how many party favors he can make. How many pencils and boxes of raisins will be in each one? 90 60 30(3 2) 10(9 6) 15(6 4) 6(15 10) ________________________________________ ________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 19 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 9. 11. Consider the sum 36 45. a. What is the LCM of two numbers when one number is a multiple of the other? Give an example. a. Use the distributive property to rewrite the sum as the product of a whole number other than 1 and a sum of two whole numbers. ________________________________________ ________________________________________ ________________________________________ b. Write the sum as the product of a whole number different from the one you chose in part a and a sum of two whole numbers. ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ c. Can this be done in more than two ways? Explain. b. What is the LCM of two numbers that have no common factors greater than 1? Give an example. ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ 12. A baker has 72 vanilla cupcakes and 80 chocolate cupcakes. She wants to make platters for a party that have both kinds of cupcakes and the same total number of cupcakes on each platter. ________________________________________ ________________________________________ 10. a. Find the greatest common factor of 3 and 5. a. Can the baker make 10 platters of cupcakes with no cupcakes left over? Explain why or why not. ________________________________________ ________________________________________ ________________________________________ b. Find the greatest common factor of 11 and 13. ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ c. Use your results from parts a and b to make a conjecture about the GCF of any pair of prime numbers. ________________________________________ b. What is the greatest number of platters she can make? How many of each kind of cupcake will be on each platter? ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 21 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 6.NS.5 SELECTED RESPONSE Select all correct answers. Select the correct answer. 4. Choose all the situations that can be described with a negative number. 1. Carlos deposited $28.50 into his bank account after making a $20.00 withdrawal to pay for some school supplies. Represent these situations as signed numbers. The Titanic rests at a depth of about 12,000 feet. The temperature of the photosphere of the Sun is approximately 5,505 C. 28.50, 20.00 The height of the Taipei 101 skyscraper in Taiwan is 1,671 feet. 28.50, 20.00 28.50, 20.00 The average high temperature in Antarctica in January is 15 F below zero. 28.50, 20.00 2. In Barrow, Alaska, the northernmost town in the United States, the record high temperature is 79 F, recorded on July 13, 1993. The record low is 56 F below zero, recorded on February 3, 1924. Represent these situations as signed numbers. The world record for deepest scuba dive is 1,083 feet. The world record for highest base jump from a building is 2,205 feet above sea level. CONSTRUCTED RESPONSE 79, 56 5. An object’s elevation is its height above some fixed point. The most commonly used point is sea level. The word “altitude” is used to describe an object’s position above sea level, whereas the word “depth” is used to describe an object’s position below sea level. Express each of the following situations as a signed number or zero. 79, 56 79, 56 79, 56 3. While on vacation in Australia, Brent and Giselle decide to explore the Great Barrier Reef. Brent decides to go snorkeling near the surface at a depth of 5 feet below sea level. Giselle is an experienced scuba diver and decides to explore a little deeper at 80 feet below sea level. Represent these situations as signed numbers. a. An airplane at an altitude of 30,000 feet ________________________________________ b. A submarine at a depth of 1,200 feet 5, 80 5, 80 ________________________________________ c. A boat on the surface of the ocean 5, 80 5, 80 ________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 21 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 6. In golf, par is the number of strokes an average player should need to complete a particular hole. If a golfer scores under par, the score is reported as a negative number representing the number of strokes less than par. If a golfer scores over par, the score is reported as a positive number. Scoring par exactly is represented by 0. Express each of the following scores as a signed number or zero. 8. Use a signed number to represent each of the following situations. Then describe what 0 represents in the same situation. a. Salazar dives to a depth of 73 feet. ________________________________________ ________________________________________ ________________________________________ b. Nu deposits $16.78 into her bank account. a. Margaret completed 18 holes with an overall score of 9 under par. ________________________________________ ________________________________________ ________________________________________ b. Anika completed the last hole with a score of 1 over par. ________________________________________ c. Overnight, the temperature drops by 15 F. ________________________________________ c. Johan completed 9 holes on par. ________________________________________ ________________________________________ ________________________________________ d. Seamus completed the first hole of the tournament with a score of 2 under par. ________________________________________ 9. Write two situations that could be described by each of the following numbers. ________________________________________ 7. In a standard savings account, the term “credit” is used to describe a deposit of money into the account. The term “debit” is used to describe a withdrawal of money from the account. Describe what a positive number, a negative number, and zero mean in this context. a. 50 ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ b. 50 ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 22 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 6.NS.6a, 6.NS.6b SELECTED RESPONSE Select all correct answers. Select the correct answer. 6. Which pairs of numbers lie on opposite sides of 0 on a number line? 1. Describe the locations of 3 and 3 with respect to 0 on a number line. 8, 7 3 is to the right of 0, and 3 is to the right of 0. 10, 10 4, 9 3 is to the left of 0, and 3 is to the left of 0. 8, 15 21, 21 3 is to the left of 0, and 3 is to the right of 0. 2, 200 3 is to the right of 0, and 3 is to the left of 0. CONSTRUCTED RESPONSE 7. Graph 5, 0, 2, and 4 on the number line. Then, graph their opposites on the same number line. 2. What is the opposite of 12? 12 - 1 12 –5 1 12 12 –4 –3 –2 –1 0 1 2 3 4 5 8. Elevation is measured as a distance above or below sea level. Sea level has an elevation of 0 feet. Johanna is standing on a hillside 35 feet above sea level, and Marcus is exploring a cave at an elevation that is the opposite of Johanna’s elevation. What is Marcus’s elevation? æ 4ö 3. In which quadrant is ç 3, - ÷ ? 5ø è Quadrant I Quadrant II Quadrant III ________________________________________ Quadrant IV 9. The point (1.235, 987) is in Quadrant IV. What kind of reflection would move this point from Quadrant IV to Quadrant III? Which coordinate(s) would change signs? 4. If the point (1.9, 2) is reflected across the x-axis, which quadrant will it be in? Quadrant I Quadrant II ________________________________________ Quadrant III ________________________________________ Quadrant IV 5. Choose the correct sign description of a point in Quadrant I. ________________________________________ (, ) ________________________________________ (, ) ________________________________________ (, ) ________________________________________ (, ) ________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 14 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ Gym Teachers' Lounge Boys' Room Main Office Girls' Room Science Lab Classroom 10. To celebrate the 100th anniversary of the opening of their school, the teachers organize a treasure hunt for the students. One of the clues states, “Think of the main office as 0 on a number line. You will find the next clue in the room that is the opposite of the teachers’ lounge.” Use the diagram below to determine where the students should go to find the next clue. Explain. –3 –2 –1 0 1 2 3 13. The following graph shows the point (4, 3). It also shows the points that result when (4, 3) is reflected across the x-axis and the y-axis. a. The point (4, 3) reflected across the x-axis is (4, 3). What do you notice about the signs of the coordinates? ________________________________________ ________________________________________ ________________________________________ ________________________________________ 11. ________________________________________ a. Find the opposites of 8, 1, and 7. ________________________________________ ________________________________________ b. The point (4, 3) reflected across the y-axis is (4, 3). What do you notice about the signs of the coordinates? b. Find the opposites of the opposites from part a. ________________________________________ ________________________________________ c. What do you notice about a number and the opposite of its opposite? ________________________________________ ________________________________________ ________________________________________ c. What do you think would happen to the signs of the coordinates of (4, 3) if it were reflected across the x-axis and then the result was reflected across the y-axis? Explain your answer and provide the resulting point. ________________________________________ æ2 ö 12. Consider the ordered pair ç , y ÷ . Find a è3 ø value of y that places the ordered pair in each quadrant. If it is not possible for the ordered pair to be in a certain quadrant, explain why. ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 14 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 6.NS.6c æ 4 1ö 4. Describe the process of graphing ç , ÷ è5 3ø on a coordinate plane. SELECTED RESPONSE Select the correct answer. 1. Where is 2 on a number line? 3 4 unit in 5 the positive x-direction. Then, move 1 unit in the positive y-direction. 3 Starting at the origin, move Between 3 and 2 Between 1 and 0 Between 0 and 1 Between 2 and 3 4 unit in 5 the negative x-direction. Then, move 1 unit in the negative y-direction. 3 Starting at the origin, move 2. Identify the point on the number line. 4 unit in 5 the positive x-direction. Then, move 1 unit in the negative y-direction. 3 4 Starting at the origin, move 3.5 3.5 4 4 unit in 5 the negative x-direction. Then, move 1 unit in the positive y-direction. 3 Starting at the origin, move 3. Identify the coordinates of the point. Select all correct answers. 5. What numbers are graphed on the vertical number line? (2, 4) (4, 2) (4, 2) (2, 4) 2.5 1 2.25 1.25 1.75 2 0.75 2.5 Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 15 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 8. Below is a map showing various places in relation to Carlos’s house at the origin. Find the coordinates of the library, the school, the bike shop, and the baseball field. CONSTRUCTED RESPONSE 6. Graph and label (0.75, 1.25), (1.5, 2), (0.25, 1.75), and (1, 0.75). 7. A group of students is participating in a tug-of-war contest. The rope is laid out in a straight line with a knot in the middle. The students are positioned according to the following diagram. The object of the game for both teams is to pull the knot 2 units in their direction. The first team to do so wins the contest. Assume that each team pulls in a straight line. If Holden’s side wins, find the final positions of Holden and Marishka. Explain your answers using a number line. ________________________________________ ________________________________________ ________________________________________ ________________________________________ 9. a. Graph and label the point (2, 8). b. Find the point that represents a reflection of (2, 8) across the x-axis. Graph and label the result. c. Find the point that represents a reflection of the result from part b across the y-axis. Graph and label the result. ________________________________________ ________________________________________ ________________________________________ ________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 14 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 6.NS.7a SELECTED RESPONSE Select all correct answers. Select the correct answer. 5. Which statements are equivalent to the 8 inequality -2.5 < ? 13 1. If 3 7 and 1 7, where are 3 and 1 relative to 7 on a number line? 3 and 1 are both to the right of 7. 3 and 1 are both to the left of 7. 2.5 is to the left of 3 is to the right of 7 and 1 is to the left of 7. number line. 8 on a 13 8 is to the right of 2.5 on a 13 number line. 3 is to the left of 7 and 1 is to the right of 7. 8 is to the left of 2.5 on a 13 number line. 4 3 1 3 4 1 and > and < , where are 3 5 2 5 3 2 3 relative to on a number line? 5 2. If 2.5 is less than 4 1 3 and are both to the right of . 3 2 5 8 . 13 2.5 is to the right of 4 1 3 and are both to the left of . 3 2 5 8 on a 13 number line. 8 < -2.5 13 4 3 1 is to the right of , and is to 3 5 2 3 the left of . 5 8 > -2.5 13 8 is less than 2.5. 13 4 3 1 is to the left of , and is to the 3 5 2 3 right of . 5 CONSTRUCTED RESPONSE 6. Describe the positions of 10 and 17 relative to each other on a number line in two different ways, given that 17 10. 3. A number x is to the left of 10.2 on a number line. Which inequality describes this situation? x 10.2 ________________________________________ x 10.2 ________________________________________ 10.2 x ________________________________________ x 10.2 7. 0.001 x and x 10,000. Is x between 0.001 and 10,000, to the left of 0.001, or to the right of 10,000? Explain your reasoning. 4. On a number line, a number p is to the right of 18. Which of the following choices describes this situation? 18 p p 18 18 p p 18 ________________________________________ ________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 15 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 10. Matthias says that the inequality 1 2.2 is true because 1 is to the right of 2.2 on a number line. Helga says that the inequality is true because 2.2 is to the left of 1 on a number line. Who is correct? Explain your answer by graphing 1 and 2.2 on a number line and interpreting the result. 8. Look at the following inequalities. 7 7 7 , 0 < , 22 > , 23 23 23 7 18 7 7 -1,000 < , < , > 0.2, 23 19 23 23 7 1 7 1 < , <4 23 2 23 6 a. Which of the numbers above are to 7 the right of on a number line? 23 1,000,000 > ________________________________________ ________________________________________ ________________________________________ ________________________________________ b. Which of the numbers above are to 7 the left of on a number line? 23 ________________________________________ ________________________________________ 11. Consider the inequality 5.5 4. ________________________________________ a. Graph the two numbers on a number line. ________________________________________ 9. Consider the three points on the number line. b. Describe the positions of 5.5 and 4 relative to each other on a number line in two different ways. a. Pick any two of the points and write an inequality statement. Explain your answer using the positions of the two numbers relative to each other on the number line. ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ c. Write an inequality using 5.5 and a number to the left of 5.5 on the number line. ________________________________________ ________________________________________ ________________________________________ d. Write an inequality using 4 and a number to the right of 4 on the number line. ________________________________________ b. Could the relationship between the two numbers you chose be represented in a different way? If so, write the inequality. ________________________________________ ________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 28 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 6.NS.7b 4. Anthony has $53.43 in his savings account, Maxine has $54.78, Rodolfo has $54.98, and Nicola has $53.29. Who has saved the most money? Who has saved the least? SELECTED RESPONSE Select the correct answer. 1. The thermometer at Bruce’s house shows a temperature of 2 F. The thermometer at Zan’s house reads 5 F. Which inequality represents this situation? Whose thermometer shows a warmer temperature? Maxine has saved the most money, and Anthony has saved the least. Maxine has saved the most money, and Nicola has saved the least. 2 F 5 F; Bruce’s thermometer shows a warmer temperature. Rodolfo has saved the most money, and Nicola has saved the least. 2 F 5 F; Zan’s thermometer shows a warmer temperature. Rodolfo has saved the most money, and Anthony has saved the least. 2 F 5 F; Bruce’s thermometer shows a warmer temperature. Select all correct answers. 2 F 5 F; Zan’s thermometer shows a warmer temperature. 5. Jack needs a piece of wood at least 13 inch long for some detail work on a 16 project he is working on. Which of the following lengths of wood would meet his requirements? 2. Marco and Randy decide to have a foot race on a local field. Marco can maintain a speed of 8 miles per hour, while Randy runs at 6 miles per hour. Which inequality represents this situation? Who is faster? 1 inch 2 8 mph 6 mph; Marco is faster. 8 mph 6 mph; Randy is faster. 7 inch 8 8 mph 6 mph; Marco is faster. 3 inch 4 8 mph 6 mph; Randy is faster. 3. In a cooking class, each student needs 2 cup of sugar for a recipe. Zach has 3 3 cup of sugar at his cooking station, 4 1 while Suzanne has cup at her cooking 2 station. Who has enough sugar to make the recipe? 27 inch 32 5 inch 8 CONSTRUCTED RESPONSE 2 cup strawberries, 3 1 1 3 cup sugar, cup walnuts, and cup 4 2 4 flour. Order the amounts from least to greatest. Which ingredient does the recipe require the least amount of? 6. A recipe calls for Zach has enough sugar. Suzanne has enough sugar. Zach and Suzanne both have enough sugar. Neither Zach nor Suzanne has enough sugar. ________________________________________ ________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 14 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 7. While climbing a mountain, Chuck and Marissa decided to take separate trails and meet at the peak. Chuck took the easier trail and was at an elevation of about 425 feet after an hour. Marissa took the more advanced trail and made it to 550 feet in an hour. Marissa started to get tired and was only able to climb 150 more feet in the next hour. Since Chuck took the easier trail, he was able to climb an additional 350 feet in the second hour. Write inequalities that express their locations on the mountain after 1 hour and after 2 hours. Who was at a higher elevation after 2 hours? 9. The record low temperatures for three towns in Alaska are given in the table below. Write three inequalities using three different pairs of temperatures. Which of the three towns has the highest record low? Town Record Low Anchorage 34 F Barrow 56 F Juneau 22 F ________________________________________ ________________________________________ ________________________________________ ________________________________________ 10. Sam and Nima have part-time jobs for the summer. Over the last three weeks, Sam has made deposits of $40.25, $58.50, and $28.40 into his savings account. During the same time, his sister Nima has deposited $60.85, $20.00, and $62.13 into her savings account. ________________________________________ ________________________________________ ________________________________________ 8. Sally plants four flowers in her garden and measures their heights (Height 1). One month later, she measures their heights again (Height 2). Which flower grew the most? Show your work. Flower 1 2 3 4 a. Write an inequality that compares Sam’s total deposits with Nima’s total deposits. Who deposited more money? Height 1 Height 2 1 6 in. 2 3 7 in. 4 7 5 in. 8 5 6 in. 16 ________________________________________ 5 8 in. 16 1 8 in. 4 3 9 in. 16 1 7 in. 2 ________________________________________ b. Sam and Nima both make withdrawals from their accounts. Nima withdraws $37.28. After the withdrawals, Sam has more money in his account than Nima does. What is the largest amount Sam could have withdrawn for this to be true? Explain your reasoning. ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 14 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 6.NS.7c, 6.NS.7d SELECTED RESPONSE 9 2 or 1 ? Which 13 3 number has the greater absolute value? 9 2 2 is greater than 1 , but 1 has 13 3 3 the greater absolute value. 2 9 9 1 is greater than - , but 3 13 13 has the greater absolute value. 4. Which is greater, Select the correct answer. 1. Marlene is about to write a check for $103.48 to pay for groceries. When she subtracts the amount of the check from her account balance, she sees that the new balance would be $28.80. Rather than overdraw her checking account, Marlene asks the cashier to remove some items. For Marlene to be able to pay by check without overdrawing her account, what is the minimum value of the items the cashier must remove? 9 2 9 is greater than 1 , and 13 3 13 has the greater absolute value. - $103.48 2 9 2 is greater than , and 1 3 13 3 has the greater absolute value. 1 $28.80 $28.80 $103.48 Select all correct answers. 5. Which numbers have an absolute value of 2? 2. Which of the following pairs of numbers have the same absolute value? 1, 0.1 3 1 1 - , 2 2 1 2 0, 1 0 4, 40 1 2 3. How do the numbers 3 and 2 compare? How do their absolute values compare? 3 3 is greater than 2, but 2 has the greater absolute value. CONSTRUCTED RESPONSE 6. Identify the pairs of numbers on the number line that have the same absolute value. 2 is greater than 3, but 3 has the greater absolute value. 3 is greater than 2, and 3 has the greater absolute value. 2 is greater than 3, and 2 has the greater absolute value. ________________________________________ ________________________________________ ________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 15 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 7. Both Vince and Betty use their debit cards to make purchases. After their purchases, Vince’s checking account balance shows a transaction of $25.00, while Betty’s shows $18.25. Who spent more money? Justify your answer by writing an inequality. 10. In a town, Talbot Street is the main commercial center. The number line shown represents Talbot Street, where each unit represents 100 feet. ________________________________________ ________________________________________ ________________________________________ a. Yvette and Naomi are at the intersection of Second Street and Talbot Street. If Yvette goes to the grocery store and Naomi goes to the fruit stand, who travels farther from Second Street? Justify your answer. 8. Find two numbers a and b with the following properties. a. a b, a > b ________________________________________ b. a b, a < b ________________________________________ ________________________________________ ________________________________________ c. a b, a = b ________________________________________ b. Anzelm is at the intersection of First Street and Talbot Street. How many feet is Anzelm from Second Street? Justify your answer. ________________________________________ 9. Monica is hiking in California’s Death Valley. Along her route, she sees a sign that says “282 feet below sea level.” Elevation is the height above or below a fixed point. Positive elevations indicate heights above the point, and negative elevations indicate heights below the point. ________________________________________ ________________________________________ ________________________________________ 11. Suppose a and b are two negative numbers. If a b, is it possible that a > b ? Explain your answer, using a a. What is the elevation of the sign relative to sea level? Explain. ________________________________________ number line and examples as needed. ________________________________________ ________________________________________ b. How far up or down must Monica hike from the sign to reach sea level? Explain. ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 14 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 6.NS.8 SELECTED RESPONSE CONSTRUCTED RESPONSE Select the correct answer. 4. Jerry and Meena are riding their bicycles through the city to meet at the park, as shown on the coordinate plane. On the coordinate plane, north is in the positive y-direction, and 1 unit represents 1 city block. Jerry starts at the point (2, 5) and rides north toward the park at the point (2, 1). Meena starts at east of the park at the point (5, 1) and rides west toward the park. How far does each person travel to reach the park? 1. On a coordinate plane, point A is located at (5, 3). To get to point B, move 8 units to the right, 6 units down, and 1 unit to the left. What are the coordinates of point B? (12, 9) (12, 3) (2, 3) (2, 9) 2. What is the distance between point A at (7, 5) and point B at (2, 5)? ________________________________________ 9 ________________________________________ 5 ________________________________________ 9 5. Point A is located at (3, 1), point B is located at (3, 4), and point C is located at (3, 1) on a coordinate plane. 10 3. North is the positive y-direction on a coordinate plane, and 1 unit on the plane represents 1 foot. A soccer ball is kicked directly east from point (3, 4). The ball travels a horizontal distance of 23 feet through the air and rolls an extra 14 feet. Where does the ball stop? a. What is the distance between points A and B? ________________________________________ ________________________________________ b. What is the distance between points A and C? (34, 4) (40, 4) ________________________________________ (20, 4) ________________________________________ (11, 4) Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 15 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 7. Jamie’s house is in the center of town, at point (0, 0). He is doing some errands in town and stops at the other four labeled points on the coordinate plane. One unit on the coordinate plane represents 1 block. He travels 4 blocks to his first stop. His second stop is 7 blocks from his first stop. He can only travel on the sidewalks, which are represented by the grid lines. 6. Ravel wants to build a fence around his garden. The shape of his garden is shown on the coordinate plane, where each unit represents 1 foot. Use absolute values to find the length of each section of fence. How many feet of fence does Ravel need? Show your work. ________________________________________ ________________________________________ a. Where did Jamie go first? List all possible answers. Justify your answers. ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ b. Where did Jamie go second? List all possible answers. Justify your answers. ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ ________________________________________ Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 34 Common Core Assessment Readiness Name _______________________________________ Date __________________ Class __________________ 6.NS.1 Answers 1. C 10. Juan set up the problem incorrectly as 5 3 3 is the dividend . In the problem, 7 4 4 5 and is the divisor. The correct work is 7 2. D 3. C 4. B 5. C 3 5 3 4 7 4 6. C 7 21 . 5 20 7. 10, 3, 8 The quotient is Rubric 1 point for each number Rubric 2 points for error description; 1 point for corrected work; 1 point for quotient 3 8. There are 4 whole -foot sections. 16 11 3 11 12 16 12 21 . 20 16 176 44 3 36 9 11. a. Possible answer: Sally requires several rectangular pieces of construction paper for an art project. The pieces need to have an area of 1 square inch. She has several strips 4 of paper left from the last art project 7 that are each inch wide. How long 16 should each piece be cut to meet her requirements for this project? 1 7 1 16 4 b. 4 16 4 7 7 c. Possible answer: Sally should cut the 4 strips into lengths of inch. 7 44 is not a whole number. However, 9 44 8 since 4 , there are 4 whole 9 9 3 -foot sections, with some left over that 16 Ida cannot use. Rubric 1 point for answer; 1 point for work; 1 point for explanation 1 5 1 64 64 32 2 6 2 64 2 5 10 5 5 servings 32 2 6 , she has enough milk b. Since 5 5 for 6 full days. 9. a. Rubric a. 2 points for reasonable situation b. 1 point c. 1 point for correct interpretation of answer according to part a Rubric a. 1 point for answer; 1 point for work b. 1 point for answer; 1 point for explanation Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 Teacher Guide 14 Common Core Assessment Readiness 6.NS.2 Answers 1. D 9. a. The remainder, 87, is larger than the divisor, 62, so 16 is not the maximum number of times 62 can go into 1079. b. Maurice found a quotient that is too small, so increase 16 by 1 in the expression 16 62 87, subtract 62 from 87, and see if that gives a remainder of less than 62. If you multiply 62 by 17, you get 1054, which is 25 less than the dividend of 1079. The correct quotient is 17 with a remainder of 25. Rubric 1 point for the error; 1 point for the correct answer; 3 points for explaining an appropriate method that doesn’t involve division 2. B 3. B 4. C 5. B, C, D 6. 13 102 1326 1020 306 306 0 The floors are 13 feet tall. Rubric 1 point for work; 1 point for answer 10. a. The administrator’s plan will not be as effective because there will be 342 38 9 students on each team. This is more than 7 students per team. b. Divide the number of students by 7. 7. a. 32 apples b. 48 bags Rubric a. 1 point b. 2 points 48 7 342 8. Yes; 280 62 56 6 6 15 98 90 8 There will be 49 teams. The teams will not all have the same number of students because there will be 48 teams of 7 students and 1 team of 6 students. Martina has enough money to pay for 6 months of the service. She will have $8 left over. Rubric 1 point for the answer; 1 point for explaining the remainder in the context of the problem; 1 point for explaining the quotient in the context of the problem Rubric a. 2 points b. 1 point for stating there will be 49 teams; 1 point for stating the teams do not all have the same number of students; 1 point for stating why Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 Teacher Guide 14 Common Core Assessment Readiness 11. a. 9 13 117 9 13 118 9 13 119 117 0 117 1 117 2 b. 120 13 will be 9 with a remainder of 3. In each of the three quotients, the remainder increased by 1 every time the dividend increased by 1. c. The remainder cannot be the same as the divisor. The correct quotient is 10. Rubric: a. 1 point for each quotient; b. 1 point for the quotient of 120 13; 1 point for explaining the pattern c. 1 point for explaining the error; 1 point for correct quotient Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 Teacher Guide 14 Common Core Assessment Readiness 6.NS.3 Answers 1. D Rubric 1 point for error; 2 points for corrected work; 1 point for answer 2. A 3. A 4. B 16. a. The difference in price is $0.38 per gallon. b. $0.38 15.25 $5.795 $5.80 5. F 6. H 7. D Rubric a. 1 point b. 1 point for answer; 1 point for work 8. B 9. E 10. A 17. a. Shen earned $69.60 the first week, $84.00 the second week, $52.80 the third week, and $64.80 the fourth week. b. Shen had 0.5 69.60 0.5 52.80 $61.20 in the bank at the end of last month. c. Shen had earned $69.60 $84.00 $52.80 64.80 $271.20 for the month. He put $61.20 in the bank, so he has $271.20 $61.20 $210.00 to spend at the end of last month. 11. C 12. G 13. a. $67.16 b. $56.47 Rubric a. 1 point b. 1 point 14. 0.3125 5.625 3,125 56,250. 18 3,125 56,250 Rubric a. 0.5 point for each amount b. 1 point for answer; 1 point for work c. 1 point for answer; 1 point for work 3,125 0 25,000 25, 000 18. The second steak is the better buy. 0 The first steak costs $7.00 per pound and the second costs $6.20 per pound. Mariposa can get eighteen 0.3125-inch strips from the 5.625-inch wooden board. Rubric 1 point for answer; 2 points for an explanation that includes the prices per pound Rubric 1 point for work; 1 point for answer 15. Jean-Paul did not line the numbers up by place value when adding. The easiest way to do this is to line up the decimal points. 1 1 4. 2 8 7 4 1. 2 8 6 0 5. 5 7 3 4 4.2874 1.286 5.5734 Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 Teacher Guide 15 Common Core Assessment Readiness 6.NS.4 Answers 1. D 10. a. 1 b. 1 c. The only factors of a prime number are 1 and itself, so the greatest common factor of two prime numbers is always 1. 2. B 3. A 4. B 5. A 6. No, the greatest common factor of 85 and 99 is 1. The only way to rewrite 85 99 using the distributive property is to write 1(85 99). Rubric a. 1 point b. 1 point c. 2 points Rubric 1 point for answer; 2 points for explanation 11. Possible answer: a. 36 45 3(12 15) b. 36 45 9(4 5) c. This cannot be done in more than two ways because 3 and 9 are the only common factors of 36 and 45 other than 1. 7. The LCM of 6 and 9 is 18. Therefore, Charlie and Dasha will both be traveling on business trips in 18 months, and so will need to hire someone then. Rubric 1 point for answer; 1 point for explanation Rubric a. 1 point b. 1 point c. 1 point for stating that it cannot be done in more than two ways; 1 point for explanation 8. The GCF of 96 and 80 is 16, so Salvatore can make 16 party favors. Each one will have 6 pencils and 5 boxes of raisins. Rubric 1 point for using the GCF to find the number of party favors; 1 point for number of pencils per party favor; 1 point for number of boxes of raisins per party favor 12. a. No, she cannot make 10 platters of cupcakes; 72 is not divisible by 10. b. The GCF of 72 and 80 is 8, so she can make 8 platters. Each platter will have 9 vanilla cupcakes and 10 chocolate cupcakes. 9. Possible answers: a. The LCM is the greater of the two numbers. For example, the LCM of 3 and 9 is 9. b. The LCM is the product of the two numbers. For example, the LCM of 5 and 9 is 45. Rubric a. 1 point for answer; 1 point for explanation b. 1 point for number of platters; 1 point for number of vanilla and chocolate cupcakes Rubric a. 1 point for answer; 1 point for valid example b. 1 point for answer; 1 point for valid example Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 Teacher Guide 11 Common Core Assessment Readiness 6.NS.5 Answers 1. C 9. a. Possible answers: climbing to a height of 50 feet; depositing $50 into a bank account b. Possible answers: diving to a depth of 50 feet; withdrawing $50 from a bank account 2. C 3. B 4. A, D, E 5. a. 30,000 b. 1,200 c. 0 Rubric a. 1 point for each reasonable answer b. 1 point for each reasonable answer Rubric 1 point for each part 6. a. b. c. d. 9 1 0 2 Rubric 1 point for each part 7. A positive number indicates money being deposited, so it is a credit to the account. A negative number indicates money being withdrawn, so it is a debit to the account. Zero means that money is neither being deposited nor withdrawn, so there is no change. Rubric 1 point for positive number interpretation; 1 point for negative number interpretation; 2 points for interpretation of zero 8. a. 73; 0 represents sea level b. 16.78; 0 represents no deposit or withdrawal c. 15; 0 represents no change in termperature Rubric a. 1 point for signed number; 1 point for interpreting 0 b. 1 point for signed number; 1 point for interpreting 0 c. 1 point for signed number; 1 point for interpreting 0 Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 Teacher Guide 12 Common Core Assessment Readiness 6.NS.6a, 6.NS.6b Answers 11. a. 8, 1, and 7 b. 8, 1, and 7 c. The opposite of the opposite of a number is the same as the original number. 1. D 2. A 3. D 4. B 5. A Rubric a. 0.5 point for each opposite b. 0.5 point for each opposite c. 1 point 6. B, C, E 7. The opposite of 5 is 5. The opposite of 0 is 0. The opposite of 2 is 2. The opposite of 4 is 4. –5 –4 –3 –2 –1 0 1 12. Quadrant I: Possible answer: y 1 Quadrant IV: Possible answer: y 1 2 3 4 æ2 ö The ordered pair ç , y ÷ cannot be in è3 ø Quadrant II or Quadrant III because the x-coordinate is positive. 5 Rubric 0.5 point for each nonzero point; 1 point for zero and its opposite (they are the same point) Rubric 1 point for Quadrant I value; 1 point for Quadrant IV value; 1 point for stating the point cannot be in Quadrant II or Quadrant III; 1 point for explanation 8. 35 feet Rubric 1 point for the correct number; 1 point for including units 9. A reflection across the y-axis would move the point to Quadrant III. The x-coordinate would change from positive to negative. 13. a. The y-coordinate of the point (4, 3) has the opposite sign of the y-coordinate of (4, 3). b. The x-coordinate of the point (4, 3) has the opposite sign of the x-coordinate of (4, 3). c. A reflection across the x- and then the y-axis would result in a change to the signs of both coordinates. If (4, 3) were reflected across the x-axis and then that point was reflected across the y-axis, the resulting point would be (4, 3). Rubric 1 point for identifying the transformation; 1 point for identifying sign change 10. The students should go to the science lab. The teachers’ lounge is represented by 2 on the number line. The opposite of 2 is 2, so the next clue is in the room represented by 2 on the number line, the science lab. Rubric 2 points for answer; 2 points for the explanation Rubric a. 1 point for noting the sign change b. 1 point for noting the sign change c. 1 point for noting the sign changes; 1 point for the coordinates of the result Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 Teacher Guide 14 Common Core Assessment Readiness 6.NS.6c Answers 1. C 8. The coordinates of the library are (4, 1). The coordinates of the school are (3, 4). The coordinates of the bike shop are (4, 3). The coordinates of the baseball field are (3, 3). 2. B 3. D 4. A 5. B, D, F, G Rubric 1 point for each ordered pair 6. 9. The points are graphed and labeled below. Rubric 1 point for each graphed and labeled point Rubric a. 1 point for graphed and labeled point b. 1 point for coordinates of point; 1 point for graphed and labeled point c. 1 point for coordinates of point; 1 point for graphed and labeled point 7. Holden will be at 5 and Marishka will be at 1. Holden’s side pulls the knot 2 units in the negative direction, so all the students move 2 units in the negative direction, as shown on the number line. Rubric 1 point for Holden’s position; 1 point for Marishka’s position; 2 points for correct number line and labels Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 Teacher Guide 14 Common Core Assessment Readiness 6.NS.7a Answers 1. A 10. They are both correct. As shown on the number line, 1 is to the right of 2.2. It is also correct to say that 2.2 is to the left of 1. 2. C 3. B 4. D 5. A, B, D, G 6. 10 is to the left of 17 on a number line. Rubric 1 point for the answer; 1 point for the explanation; 1 point for each graphed number 17 is to the right of 10 on a number line. Rubric 1 point for each answer 7. x is between 0.001 and 10,000. Since 0.001 x, x is to the right of 0.001 on a number line. Since x 10,000, x is to the left of 10,000. Since x is to the right of 0.001 and to the left of 10,000, x is between the two numbers. 11. a. b. 5.5 is to the left of 4; 4 is to the right of 5.5. c. Possible answer: 6 5.5 d. Possible answer: 4 3 Rubric 1 point for answer; 2 points for explanation Rubric a. 0.5 point for each graphed number b. 0.5 point for each description c. 1 point d. 1 point 1 1 , 4 , 22, and 1,000,000 2 6 18 b. 1,000, - , 0, and 0.2 19 8. a. Rubric a. 0.5 point per number b. 0.5 point per number 9. a. Possible answer: 2.25 2; 2.25 is to the left of 2 on the number line, so 2.25 is less than 2. b. Yes; Possible answer: 2 2.25 Rubric a. 1 point for correct inequality; 1 point for explanation b. 1 point for correct answer; 1 point for inequality Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 Teacher Guide 14 Common Core Assessment Readiness 6.NS.7b Answers 9. Possible answer: 34 F 22 F, 34 F 56 F, 22 F 56 F 1. C 2. A 3. A Juneau has the highest record low. 4. C Rubric 1 point for each inequality; 1 point for stating Juneau has the highest record low 5. B, D 6. 1 2 1 3 cup, cup, cup, cup 4 2 3 4 10. a. Sam deposited $127.15 and Nima deposited $142.98. An inequality that compares these total deposits is $127.15 $142.98 (or $142.98 $127.15). Nima deposited more money. b. Nima withdrew $37.28, so she has a total of $142.98 $37.28 $105.70. If Sam has more money in his account, he must have at least $105.71. That means the largest withdrawal he could make is $127.15 $105.71 $21.44. The recipe requires a smaller amount of sugar than the other ingredients. Rubric 2 points for correctly ordered list of values; 1 point for stating the recipe requires the least amount of sugar 7. Possible answer: 1 hour: 425 ft 550 ft; 2 hours: 775 ft 700 ft Chuck was at a higher elevation after 2 hours. Rubric 1 point for each inequality; 1 point for who was at a higher elevation after 2 hours Rubric a. 1 point for the total deposits, 1 point for a correct inequality b. 1 point for correct answer; 2 points for appropriate explanation 13 in. 16 1 Flower 2 change in height: in. 2 5 Flower 3 change in height: 3 in. 16 3 Flower 4 change in height: 1 in. 16 8. Flower 1 change in height: 1 From least growth to most growth, the order is Flower 2, Flower 4, Flower 1, and Flower 3. Flower 3 grew the most in one month. Rubric 0.5 point for each height difference; 2 points for ordered list; 0.5 point for answer Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 Teacher Guide 14 Common Core Assessment Readiness 6.NS.7c, 6.NS.7d Answers 1. C 10. a. Yvette travels farther from Second Street. The grocery store is |3| 3 units from 0, and the fruit stand is |1| 1 unit from 0. Thus, Yvette travels farther from Second Street to the grocery store than Naomi travels from Second Street to the fruit stand. b. On the number line, the location of First Street is 4. Since Second Street is represented by 0 on the number line, the absolute value of the location is the distance. First Street is -4 = 4 units from 0. Since each unit 2. B 3. B 4. D 5. B, F 6. 2.25 and 2.25 3 - and 0.75 4 Rubric 1 point for each pair of numbers 7. Vince spent more money; -$25.00 > -$18.25 . represents 100 feet, Anzelm is 4 100 feet 400 feet from Second Street. Rubric 1 point for correct answer; 1 point for inequality Rubric a. 1 point for answer; 2 points for justification b. 1 point for answer; 2 points for justification 8. a. Possible answer: a 2, b 1 b. Possible answer: a 2, b 3 c. Possible answer: a 2, b 2 Rubric 1 point for each part 11. If a b and a and b are both negative, it is not possible for a > b . 9. a. Since the sign is 282 feet below sea level, the elevation of the sign relative to sea level is 282 feet. b. Since the sign is 282 feet below sea level and the elevation of sea level is 0 feet, Monica must hike up 282 feet to reach sea level. Since a b, a is to the right of b on a number line. Since a and b are negative numbers, both a and b are to the left of 0 on a number line. Since the distance from a to 0 must be less than the distance from b to 0 on a number line, a < b .So a > b is not possible. Rubric a. 1 point for answer; 1 point for a reasonable explanation b. 1 point for answer; 1 point for a reasonable explanation Rubric 1 point for answer; 3 points for a reasonable explanation Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 Teacher Guide 14 Common Core Assessment Readiness 6.NS.8 Answers 1. C 7. a. Jamie went to city hall first. The distance between Jamie’s house and city hall is 4 blocks. The distance between Jamie’s house and the grocery store is 5 blocks. The distance between Jamie’s house and the mall is 5 blocks. The distance between Jamie’s house and the doctor’s office is 5 blocks. City hall is the only location that is 4 blocks away. b. Jamie went to either the mall or the grocery store second. The distance between city hall and the mall is 7 blocks. The distance between city hall and the grocery store is 7 blocks. The distance between city hall and the doctor’s office is 9 blocks. The mall and the grocery store are both 7 blocks away. The mall and the grocery store are the only possible second stops. 2. C 3. A 4. Meena travels |5 2| 3 blocks, and Jerry travels |5 1| 6 blocks. Rubric 1 point for each distance 5. a. |1 (4)| 5 units b. |3 3| 6 units Rubric a. 1 point b. 1 point 6. Starting at point (1, 4) and moving clockwise to find each side length: The distance between (1, 4) and (4, 4) is |1 4| |5| 5. The length of this section is 5 feet. The distance between (4, 4) and (4, 5) is |4 (5)| |9| 9. The length of this section is 9 feet. Rubric a. 1 point for answer; 1 point for explanation b. 1 point for each answer; 1 point for explanation The distance between (4, 5) and (4, 5) is 4 (4) 8 8. The length of this section is 8 feet. The distance between (4, 5) and (4, 1) is |5 (1)| |4| 4. The length of this section is 4 feet. The distance between (4, 1) and (1, 1) is |4 (1)| |3| 3. The length of this section is 3 feet. The distance between (1, 1) and (1, 4) is |1 4| |5| 5. The length of this section is 5 feet. The perimeter of the garden is the sum of these distances, 5 9 8 4 3 5 34 feet. Ravel needs 34 feet of fence. Rubric 2 points for the lengths of all the sections; 1 point for reasonable work; 1 point for answer Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor. Grade 6 Teacher Guide 14 Common Core Assessment Readiness