Chapter 15 Test- Answer Key Add and Subtract Decimals

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Chapter 15 Test- Answer Key Add and Subtract Decimals Name # Date Chapter 15 Test- Answer Key Add and Subtract Decimals Tips For Taking The Test Here are some suggestions to help you do your best: Be sure to read carefully all the directions in the test book. Read each question carefully and think about the answer before choosing your response. PART 1: Multiple Choice Answer Column Solve. Round 5.63 to the nearest whole number. A. 3 C. 5 B.4 D. 6 1 1. D Round 34.68 to the nearest tenth. A. 34.6 C. 34.8 B. 34.7 D. 35 2 2. B Round 3.06 feet to the nearest tenth. A. 3.0 feet C. 3.1 feet B. 3.01 feet D. 3.5 feet 3 3. C

4. C 5. C 6. A 7. B Estimate. Round to the nearest whole number. 0.8 + 13.3 A. 12 C. 14 B. 13 D. 15 4 4. C Estimate. Round to the nearest whole number. $15.62 - $ 7.83 A. $6 C. $8 B. $7 D. $9 5 5. C Solve. $36.04 +$ 6.22 A. $42.26 C. $52.26 B. $42.28 D. $52.28 6 6. A 12.17 + 0.05 A. 12.32 C. 12.02 B. 12.22 D. 12.20 7 7. B

8. A 9. C Use any strategy to solve. 8 A bus travels 2.4 miles to the first stop, 3.7 miles to the second stop, and 5.2 miles to the third stop. How many miles does the bus travel altogether? A. 11.3 miles C. 10.7 miles B. 10.3 miles D. 9.7 miles 8. A 9 Harry bicycled 7.2 miles on Monday. 6.4 miles on Wednesday, and 8.8 miles on Friday. How many miles did he bicycle altogether? A. 22.5 miles C. 22.4 miles B. 21.4 miles D. 21.3 miles 9. C

Solve. Ana earns $0.75 each time she takes out the trash. In April, Ana took out the trash 2 more times than she did in May. If Ana earned $1.50 for taking out the trash in May, how much did she earn for taking out the trash in April? A. $3.00 C. $2.25 B. $2.75 D. $1.50 10 10. A 11 $52.28 -$ 9.07 A. $53.21 C. $43.21 B. $44.21 D. $54.21 11. C 12 9.04 + 4.87 A. 13.01 C. 14.01 B. 13.91 D. 14.91 B 12. 13 7.5 – 0.88 A. 6.32 C. 6.62 B. 6.52 D. 7.62 13. C

14. C 15. A 8.28 8.54 < Solve. Show your work. Jerry bought a DVD for $16.98 and a book for $5.92. How much more did he spend on the DVD? A. $12.06 C. $11.06 B. $11.56 D. $14.46 14 14. C 15 Ben had $4.00. He bought a sandwich for $2.39 and an apple for $0.79. How much money did he have left? A. $0.82 C. $1.25 B. $0.99 D. $4.18 15. A PART 2: Short Answer Estimate by rounding to the nearest whole number. Then compare using <, >, = 16 11.89 – 3.61 5.09 + 3.45 Answer ______________ 8.28 8.54 <

Estimate by rounding to the nearest whole number Estimate by rounding to the nearest whole number. Then compare using <, >, = 17 7.8 + 6.71 10.35 + 3.66 Answer ______________ 14.51 14.01 > Solve. 18 It takes Jim 7 minutes to mix the cookies, 12 minutes to roll them out, and 13 minutes to cook them. If he need the cookies finished by 4:15, what time must he start? Show your work. Answer ______________ 12 +7 19 19 +13 32 4:15 - 32 minutes 3:43 4:43 19 On his tenth birthday, Jon was 58.2 inches tall. On his eleventh birthday, Jon was 59.7 inches tall. By how many inches did Jon grow between his tenth birthday and his eleventh birthday? Show your work Answer ______________inches 59.7 - 58.2 1.5 1.50

Choose any strategy to solve. 20 Maria paid $2.25 for her bus ride. Her friend repaid her $5.43. Now she has $10.76. How much money did she start with? Answer ______________ $10.76 - 2.25 $ 8.51 $8.51 - 5.43 $3.08 $ 3.08 Extended Response- 2-points 21 Tom is preparing to run a long distance race. He is increasing the distance he runs each day by 0.5 miles. Below is the table that shows how many miles Tom runs each day. Miles Tom Runs Each Day Part A: How many miles did Tom run on Tuesday? Answer _____________miles Part B: How many miles did Tom run in all? Show your work. Answer miles Monday 2.0 Tuesday Wednesday 3.0 Thursday 3.5 2.5 2.5 2.0 2.5 3.0 + 3.5 11.0 11

93 85 84 78 78 Jamie Deja Michelle Extended Response- 3-points Below is a chart of student’s grades in Mrs. Fish’s class. Mrs. Fish’s Class Part A: Who has the highest grade? Part B: To the nearest whole number which two students earned the same grade? Part C: On the lines below explain how you got your answer. First I rounded all the numbers to the nearest whole by looking at the ones place and the tenths place value. I then found the two amounts that rounded to the same grade of 78. 22 Student Grade Jamie 92.78 Scott 84.67 Mario 84.21 Deja 77.86 Michelle 78.45 93 85 84 78 78 Jamie Deja Michelle