adding subtracting decimals 4th 6th preview

666666tthhtthhtthhGradesGradesGrades444444tthhtthhtthh

Decimals (+) (-)

Adding &Adding &Adding &SubtractingSubtractingSubtracting

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Answers

1-10 93 87 80 73 67 60 53 47 40 3311-15 27 20 13 7 0

1) 8 7 . 0 0- 1 7 . 2 8

6 9 . 7 2

2) 3 2 . 5 8 0+ 5 . 6 3 5

3 8 . 2 1 5

3) 1 7 . 3 0- 5 . 0 9

1 2 . 2 1

4) 8 8 . 0 0+ 3 5 . 6 0

1 2 3 . 6

5) 6 5 . 0 4 0- 5 0 . 4 1 4

1 4 . 6 2 6

6) 3 2 . 0+ 1 . 1

3 3 . 1

7) 4 7 . 0- 1 . 3

4 5 . 7

8) 8 0 . 0+ 2 9 . 61 0 9 . 6

9) 6 6 . 0- 3 8 . 3

2 7 . 7

10) 8 8 . 1 0 0+ 5 2 . 8 8 0

1 4 0 . 9 8

11) 3 1 . 7 0 0- 9 . 4 6 6

2 2 . 2 3 4

12) 6 6 . 0+ 6 1 . 61 2 7 . 6

13) 2 6 . 0 0 0- 1 0 . 7 6 0

1 5 . 2 4 0

14) 1 4 . 0 0+ 1 3 . 5 5

2 7 . 5 5

15) 7 7 . 0 0- 6 1 . 0 1

1 5 . 9 9

1. 69.72

2. 38.215

3. 12.21

4. 123.6

5. 14.626

6. 33.1

7. 45.7

8. 109.6

9. 27.7

10. 140.98

11. 22.234

12. 127.6

13. 15.240

14. 27.55

15. 15.99

Adding & Subtracting DecimalsSolve each problem.

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Answers Answer Key

1-10 93 87 80 73 67 60 53 47 40 3311-15 27 20 13 7 0

1) 8 7 . 0 0- 1 7 . 2 8

6 9 . 7 2

2) 3 2 . 5 8 0+ 5 . 6 3 5

3 8 . 2 1 5

3) 1 7 . 3 0- 5 . 0 9

1 2 . 2 1

4) 8 8 . 0 0+ 3 5 . 6 0

1 2 3 . 6

5) 6 5 . 0 4 0- 5 0 . 4 1 4

1 4 . 6 2 6

6) 3 2 . 0+ 1 . 1

3 3 . 1

7) 4 7 . 0- 1 . 3

4 5 . 7

8) 8 0 . 0+ 2 9 . 61 0 9 . 6

9) 6 6 . 0- 3 8 . 3

2 7 . 7

10) 8 8 . 1 0 0+ 5 2 . 8 8 0

1 4 0 . 9 8

11) 3 1 . 7 0 0- 9 . 4 6 6

2 2 . 2 3 4

12) 6 6 . 0+ 6 1 . 61 2 7 . 6

13) 2 6 . 0 0 0- 1 0 . 7 6 0

1 5 . 2 4 0

14) 1 4 . 0 0+ 1 3 . 5 5

2 7 . 5 5

15) 7 7 . 0 0- 6 1 . 0 1

1 5 . 9 9

1. 69.72

2. 38.215

3. 12.21

4. 123.6

5. 14.626

6. 33.1

7. 45.7

8. 109.6

9. 27.7

10. 140.98

11. 22.234

12. 127.6

13. 15.240

14. 27.55

15. 15.99


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Answers

Modified 1-10 92 83 75 67 58 50 42 33 25 1711-12 8 0

1) 8 7 . 0 0- 1 7 . 2 8

6 9 . 7 2

2) 3 2 . 5 8 0+ 5 . 6 3 5

3 8 . 2 1 5

3) 1 7 . 3 0- 5 . 0 9

1 2 . 2 1

4) 8 8 . 0 0+ 3 5 . 6 0

1 2 3 . 6

5) 6 5 . 0 4 0- 5 0 . 4 1 4

1 4 . 6 2 6

6) 3 2 . 0+ 1 . 1

3 3 . 1

7) 4 7 . 0- 1 . 3

4 5 . 7

8) 8 0 . 0+ 2 9 . 61 0 9 . 6

9) 6 6 . 0- 3 8 . 3

2 7 . 7

10) 8 8 . 1 0 0+ 5 2 . 8 8 0

1 4 0 . 9 8

11) 3 1 . 7 0 0- 9 . 4 6 6

2 2 . 2 3 4

12) 6 6 . 0+ 6 1 . 61 2 7 . 6

33.1 123.6 109.6 140.98

22.234 38.215 127.6 45.7

14.626 69.72 27.7 12.21

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1-10 93 87 80 73 67 60 53 47 40 3311-15 27 20 13 7 0

1) 8 5 . 0- 3 8 . 2

4 6 . 8

2) 3 7 . 0+ 2 8 . 0

6 5

3) 1 0 . 9 0 0- 7 . 0 9 5

3 . 8 0 5

4) 5 3 . 3 0 0+ 3 0 . 4 7 8

8 3 . 7 7 8

5) 6 7 . 0 0 0- 1 7 . 2 5 6

4 9 . 7 4 4

6) 4 0 . 9 0+ 1 0 . 2 9

5 1 . 1 9

7) 6 9 . 9 0 0- 4 . 8 3 9

6 5 . 0 6 1

8) 3 5 . 0+ 1 7 . 2

5 2 . 2

9) 7 0 . 0- 2 6 . 9

4 3 . 1

10) 1 3 . 9 0+ 9 . 2 2

2 3 . 1 2

11) 2 6 . 0- 2 2 . 1

3 . 9

12) 9 0 . 0 0+ 5 1 . 1 21 4 1 . 1 2

13) 5 5 . 1 0 0- 4 7 . 7 5 8

7 . 3 4 2

14) 3 . 4 0 0+ 2 . 5 3 8

5 . 9 3 8

15) 8 . 0 0- 2 . 2 8

5 . 7 2

1. 46.8

2. 65

3. 3.805

4. 83.778

5. 49.744

6. 51.19

7. 65.061

8. 52.2

9. 43.1

10. 23.12

11. 3.9

12. 141.12

13. 7.342

14. 5.938

15. 5.72


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Answers Answer Key

1-10 93 87 80 73 67 60 53 47 40 3311-15 27 20 13 7 0

1) 8 5 . 0- 3 8 . 2

4 6 . 8

2) 3 7 . 0+ 2 8 . 0

6 5

3) 1 0 . 9 0 0- 7 . 0 9 5

3 . 8 0 5

4) 5 3 . 3 0 0+ 3 0 . 4 7 8

8 3 . 7 7 8

5) 6 7 . 0 0 0- 1 7 . 2 5 6

4 9 . 7 4 4

6) 4 0 . 9 0+ 1 0 . 2 9

5 1 . 1 9

7) 6 9 . 9 0 0- 4 . 8 3 9

6 5 . 0 6 1

8) 3 5 . 0+ 1 7 . 2

5 2 . 2

9) 7 0 . 0- 2 6 . 9

4 3 . 1

10) 1 3 . 9 0+ 9 . 2 2

2 3 . 1 2

11) 2 6 . 0- 2 2 . 1

3 . 9

12) 9 0 . 0 0+ 5 1 . 1 21 4 1 . 1 2

13) 5 5 . 1 0 0- 4 7 . 7 5 8

7 . 3 4 2

14) 3 . 4 0 0+ 2 . 5 3 8

5 . 9 3 8

15) 8 . 0 0- 2 . 2 8

5 . 7 2

1. 46.8

2. 65

3. 3.805

4. 83.778

5. 49.744

6. 51.19

7. 65.061

8. 52.2

9. 43.1

10. 23.12

11. 3.9

12. 141.12

13. 7.342

14. 5.938

15. 5.72


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Answers

Modified 1-10 92 83 75 67 58 50 42 33 25 1711-12 8 0

1) 8 5 . 0- 3 8 . 2

4 6 . 8

2) 3 7 . 0+ 2 8 . 0

6 5

3) 1 0 . 9 0 0- 7 . 0 9 5

3 . 8 0 5

4) 5 3 . 3 0 0+ 3 0 . 4 7 8

8 3 . 7 7 8

5) 6 7 . 0 0 0- 1 7 . 2 5 6

4 9 . 7 4 4

6) 4 0 . 9 0+ 1 0 . 2 9

5 1 . 1 9

7) 6 9 . 9 0 0- 4 . 8 3 9

6 5 . 0 6 1

8) 3 5 . 0+ 1 7 . 2

5 2 . 2

9) 7 0 . 0- 2 6 . 9

4 3 . 1

10) 1 3 . 9 0+ 9 . 2 2

2 3 . 1 2

11) 2 6 . 0- 2 2 . 1

3 . 9

12) 9 0 . 0 0+ 5 1 . 1 21 4 1 . 1 2

3.9 65.061 52.2 49.744

3.805 65 83.778 43.1

51.19 141.12 46.8 23.12

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1-10 93 87 80 73 67 60 53 47 40 3311-15 27 20 13 7 0

1) 7 4 . 0 0- 1 . 2 3

7 2 . 7 7

2) 6 5 . 3 5 0+ 1 3 . 5 5 3

7 8 . 9 0 3

3) 9 0 . 0- 3 3 . 3

5 6 . 7

4) 2 1 . 0+ 9 . 7

3 0 . 7

5) 5 6 . 4 0 0- 5 4 . 5 6 2

1 . 8 3 8

6) 5 . 0+ 2 . 3

7 . 3

7) 4 3 . 0- 2 1 . 1

2 1 . 9

8) 1 1 . 0+ 1 . 4

1 2 . 4

9) 3 . 0 0 0- 2 . 7 6 3

0 . 2 3 7

10) 8 3 . 8 0+ 6 0 . 6 81 4 4 . 4 8

11) 4 5 . 8 0- 7 . 0 8

3 8 . 7 2

12) 5 8 . 0 0 0+ 6 . 0 6 4

6 4 . 0 6 4

13) 9 7 . 0- 3 3 . 3

6 3 . 7

14) 7 6 . 4 0+ 6 3 . 5 11 3 9 . 9 1

15) 3 8 . 2 1 0- 1 1 . 5 4 9

2 6 . 6 6 1

1. 72.77

2. 78.903

3. 56.7

4. 30.7

5. 1.838

6. 7.3

7. 21.9

8. 12.4

9. 0.237

10. 144.48

11. 38.72

12. 64.064

13. 63.7

14. 139.91

15. 26.661


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Answers Answer Key

1-10 93 87 80 73 67 60 53 47 40 3311-15 27 20 13 7 0

1) 7 4 . 0 0- 1 . 2 3

7 2 . 7 7

2) 6 5 . 3 5 0+ 1 3 . 5 5 3

7 8 . 9 0 3

3) 9 0 . 0- 3 3 . 3

5 6 . 7

4) 2 1 . 0+ 9 . 7

3 0 . 7

5) 5 6 . 4 0 0- 5 4 . 5 6 2

1 . 8 3 8

6) 5 . 0+ 2 . 3

7 . 3

7) 4 3 . 0- 2 1 . 1

2 1 . 9

8) 1 1 . 0+ 1 . 4

1 2 . 4

9) 3 . 0 0 0- 2 . 7 6 3

0 . 2 3 7

10) 8 3 . 8 0+ 6 0 . 6 81 4 4 . 4 8

11) 4 5 . 8 0- 7 . 0 8

3 8 . 7 2

12) 5 8 . 0 0 0+ 6 . 0 6 4

6 4 . 0 6 4

13) 9 7 . 0- 3 3 . 3

6 3 . 7

14) 7 6 . 4 0+ 6 3 . 5 11 3 9 . 9 1

15) 3 8 . 2 1 0- 1 1 . 5 4 9

2 6 . 6 6 1

1. 72.77

2. 78.903

3. 56.7

4. 30.7

5. 1.838

6. 7.3

7. 21.9

8. 12.4

9. 0.237

10. 144.48

11. 38.72

12. 64.064

13. 63.7

14. 139.91

15. 26.661


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1-10 90 80 70 60 50 40 30 20 10 0

1) John and Lana were comparing the distance they ran over a week. If John ran 13.42 milesand Lana ran 16.7 miles, how far did they run total?

2) Chloe downloaded two apps which were 12.42 kb total. If one app was 9.32 kb, how bigwas the other app?

3) Mike was weighing the amount of candy he received for Halloween. If he received 5.9 kgand his brother received 7.1 kg, how much candy did they get all together?

4) Will was checking how much power his lights used. His first light by itself used 73.15amps. When he turned on the second light, together they used 152.95 amps. How manyamps did just the second light use?

5) Luke walked 5.62 kilometers during the two days he was at the fair. One the first day hewalked 3.52 kilometers. How far did he walk the second day?

6) Dave bought 4.6 lbs of cherry and lime jelly beans for his birthday party. If 1.70 lbs werecherry flavor, how many pounds were lime flavor?

7) A scientist was measuring the daily sodium values of different foods. If a soda has 44.22%the daily value and fries have 49.1% the daily value, how much would they have together?

8) Maria was checking the weight of a gold nugget and a piece of fools gold. Together theyweighed 98.06 grams. If the fools gold was 20.16 grams, how much did the gold nuggetweigh?

9) Sarah was measuring how much taller she got over two years. In the first year she grew1.72 cm. In the second year she grew 7.6 cm. How much taller did she get altogether?

10) A computer programmer had two files. The first was 50.41 gigabyes and the second was42.4 gigabytes. What is the total file size of both?

1. 30.12

2. 3.1

3. 13

4. 79.8

5. 2.1

6. 2.9

7. 93.32

8. 77.9

9. 9.32

10. 92.81

Adding and Subtracting DecimalsSolve each problem.

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Answers Answer Key

1-10 90 80 70 60 50 40 30 20 10 0











1. 30.12

2. 3.1

3. 13

4. 79.8

5. 2.1

6. 2.9

7. 93.32

8. 77.9

9. 9.32

10. 92.81


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Modified 1-10 90 80 70 60 50 40 30 20 10 0











2.9 13 2.1 93.32 3.1

30.12 79.8 92.81 9.32 77.91.

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1-10 90 80 70 60 50 40 30 20 10 0

1) John walked 4.83 kilometers during the two days he was at the fair. One the first day hewalked 1.73 kilometers. How far did he walk the second day?

2) Kaleb was checking how much power his lights used. His first light by itself used 59.71amps. When he turned on the second light, together they used 130.61 amps. How manyamps did just the second light use?

3) A botanist was measuring how tall her plant grew. After two weeks it had grown 12.58inches. The second week alone it had grown 5.28 inches! How much did it grow the firstweek?

4) Roger was weighing the amount of candy he received for Halloween. If he received 10.24kg and his brother received 7.2 kg, how much candy did they get all together?

5) Wendy was checking the weight of a gold nugget and a piece of fools gold. Together theyweighed 123.1 grams. If the fools gold was 44.6 grams, how much did the gold nuggetweigh?


7) Sam was making some brownies and cupcakes for his school fundraiser. If the browniesneeded 3.84 cups of sugar and the cupcakes needed 1.9 cups, how much sugar would heneed altogether?

8) Oliver ate a snack with 83.4 total calories. If the chips he ate were 32.70 calories, howmany calories were in the rest of his snack?

9) Janet was trying to put some files on her flash drive. If she had one file that was 8.6 mband another file that was 9.1 mb what is their combined file size?

10) Henry and Sarah were comparing the distance they ran over a week. If Henry ran 16.2miles and Sarah ran 12.8 miles, how far did they run total?

1. 3.1

2. 70.9

3. 7.3

4. 17.44

5. 78.5

6. 89.05

7. 5.74

8. 50.7

9. 17.7

10. 29


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Answers Answer Key

1-10 90 80 70 60 50 40 30 20 10 0

1) John walked 4.83 kilometers during the two days he was at the fair. One the first day hewalked 1.73 kilometers. How far did he walk the second day?

2) Kaleb was checking how much power his lights used. His first light by itself used 59.71amps. When he turned on the second light, together they used 130.61 amps. How manyamps did just the second light use?

3) A botanist was measuring how tall her plant grew. After two weeks it had grown 12.58inches. The second week alone it had grown 5.28 inches! How much did it grow the firstweek?

4) Roger was weighing the amount of candy he received for Halloween. If he received 10.24kg and his brother received 7.2 kg, how much candy did they get all together?

5) Wendy was checking the weight of a gold nugget and a piece of fools gold. Together theyweighed 123.1 grams. If the fools gold was 44.6 grams, how much did the gold nuggetweigh?


7) Sam was making some brownies and cupcakes for his school fundraiser. If the browniesneeded 3.84 cups of sugar and the cupcakes needed 1.9 cups, how much sugar would heneed altogether?

8) Oliver ate a snack with 83.4 total calories. If the chips he ate were 32.70 calories, howmany calories were in the rest of his snack?

9) Janet was trying to put some files on her flash drive. If she had one file that was 8.6 mband another file that was 9.1 mb what is their combined file size?

10) Henry and Sarah were comparing the distance they ran over a week. If Henry ran 16.2miles and Sarah ran 12.8 miles, how far did they run total?

1. 3.1

2. 70.9

3. 7.3

4. 17.44

5. 78.5

6. 89.05

7. 5.74

8. 50.7

9. 17.7

10. 29


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1-10 92 83 75 67 58 50 42 33 25 1711-12 8 0

1) 27 - 24.53 = 2.47

2) 66.18 + 31.183 = 97.363

3) 76.13 - 62.664 = 13.466

4) 81 + 74.1 = 155.1

5) 14 - 10.2 = 3.8

6) 59.80 + 29.286 = 89.086

7) 82 - 27.9 = 54.1

8) 78.3 + 63.21 = 141.51

9) 29 - 7.21 = 21.79

10) 18.4 + 12.47 = 30.87

11) 38.7 - 31.73 = 6.97

12) 33 + 17.5 = 50.5

1. 2.47

2. 97.363

3. 13.466

4. 155.1

5. 3.8

6. 89.086

7. 54.1

8. 141.51

9. 21.79

10. 30.87

11. 6.97

12. 50.5


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Answers Answer Key

1-10 92 83 75 67 58 50 42 33 25 1711-12 8 0

1) 27 - 24.53 = 2.47

2) 66.18 + 31.183 = 97.363

3) 76.13 - 62.664 = 13.466

4) 81 + 74.1 = 155.1

5) 14 - 10.2 = 3.8

6) 59.80 + 29.286 = 89.086

7) 82 - 27.9 = 54.1

8) 78.3 + 63.21 = 141.51

9) 29 - 7.21 = 21.79

10) 18.4 + 12.47 = 30.87

11) 38.7 - 31.73 = 6.97

12) 33 + 17.5 = 50.5

1. 2.47

2. 97.363

3. 13.466

4. 155.1

5. 3.8

6. 89.086

7. 54.1

8. 141.51

9. 21.79

10. 30.87

11. 6.97

12. 50.5


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Answers

Modified 1-10 90 80 70 60 50 40 30 20 10 0

1) 27 - 24.53 = 2.47

2) 66.18 + 31.183 = 97.363

3) 76.13 - 62.664 = 13.466

4) 81 + 74.1 = 155.1

5) 14 - 10.2 = 3.8

6) 59.80 + 29.286 = 89.086

7) 82 - 27.9 = 54.1

8) 78.3 + 63.21 = 141.51

9) 29 - 7.21 = 21.79

10) 18.4 + 12.47 = 30.87

89.086 13.466 3.8 97.363 141.51

54.1 30.87 2.47 155.1 21.79

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1-10 92 83 75 67 58 50 42 33 25 1711-12 8 0

1) 57.07 - 32.162 = 24.908

2) 81.6 + 71.253 = 152.853

3) 59 - 13.50 = 45.50

4) 27 + 2.65 = 29.65

5) 81 - 4.5 = 76.5

6) 36 + 21.4 = 57.4

7) 91 - 58.8 = 32.2

8) 21 + 11.7 = 32.7

9) 45 - 3.8 = 41.2

10) 37.2 + 24.10 = 61.3

11) 52.7 - 25.16 = 27.54

12) 80.3 + 35.551 = 115.851

1. 24.908

2. 152.853

3. 45.50

4. 29.65

5. 76.5

6. 57.4

7. 32.2

8. 32.7

9. 41.2

10. 61.3

11. 27.54

12. 115.851


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Name:

Answers Answer Key

1-10 92 83 75 67 58 50 42 33 25 1711-12 8 0

1) 57.07 - 32.162 = 24.908

2) 81.6 + 71.253 = 152.853

3) 59 - 13.50 = 45.50

4) 27 + 2.65 = 29.65

5) 81 - 4.5 = 76.5

6) 36 + 21.4 = 57.4

7) 91 - 58.8 = 32.2

8) 21 + 11.7 = 32.7

9) 45 - 3.8 = 41.2

10) 37.2 + 24.10 = 61.3

11) 52.7 - 25.16 = 27.54

12) 80.3 + 35.551 = 115.851

1. 24.908

2. 152.853

3. 45.50

4. 29.65

5. 76.5

6. 57.4

7. 32.2

8. 32.7

9. 41.2

10. 61.3

11. 27.54

12. 115.851


10

adding subtracting decimals 4th 6th preview

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