10.
Math www.CommonCoreSheets.com
Name:
Answers
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 miles
and 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 big
was the other app?
3) Mike was weighing the amount of candy he received for Halloween. If he received 5.9 kg
and 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 73.15
amps. When he turned on the second light, together they used 152.95 amps. How many
amps 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 he
walked 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 were
cherry 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 they
weighed 98.06 grams. If the fools gold was 20.16 grams, how much did the gold nugget
weigh?
9) Sarah was measuring how much taller she got over two years. In the first year she grew
1.72 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 was
42.4 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 Decimals
Solve each problem.
7
11.
Math www.CommonCoreSheets.com
Name:
Answers
Answer Key
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 miles
and 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 big
was the other app?
3) Mike was weighing the amount of candy he received for Halloween. If he received 5.9 kg
and 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 73.15
amps. When he turned on the second light, together they used 152.95 amps. How many
amps 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 he
walked 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 were
cherry 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 they
weighed 98.06 grams. If the fools gold was 20.16 grams, how much did the gold nugget
weigh?
9) Sarah was measuring how much taller she got over two years. In the first year she grew
1.72 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 was
42.4 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 Decimals
Solve each problem.
7
12.
Math www.CommonCoreSheets.com
Name:
Answers
Modified 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 miles
and 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 big
was the other app?
3) Mike was weighing the amount of candy he received for Halloween. If he received 5.9 kg
and 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 73.15
amps. When he turned on the second light, together they used 152.95 amps. How many
amps 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 he
walked 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 were
cherry 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 they
weighed 98.06 grams. If the fools gold was 20.16 grams, how much did the gold nugget
weigh?
9) Sarah was measuring how much taller she got over two years. In the first year she grew
1.72 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 was
42.4 gigabytes. What is the total file size of both?
2.9 13 2.1 93.32 3.1
30.12 79.8 92.81 9.32 77.9
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Adding and Subtracting Decimals
Solve each problem.
7
13.
Math www.CommonCoreSheets.com
Name:
Answers
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 he
walked 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 59.71
amps. When he turned on the second light, together they used 130.61 amps. How many
amps did just the second light use?
3) A botanist was measuring how tall her plant grew. After two weeks it had grown 12.58
inches. The second week alone it had grown 5.28 inches! How much did it grow the first
week?
4) Roger was weighing the amount of candy he received for Halloween. If he received 10.24
kg 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 they
weighed 123.1 grams. If the fools gold was 44.6 grams, how much did the gold nugget
weigh?
6) A computer programmer had two files. The first was 47.35 gigabyes and the second was
41.7 gigabytes. What is the total file size of both?
7) Sam was making some brownies and cupcakes for his school fundraiser. If the brownies
needed 3.84 cups of sugar and the cupcakes needed 1.9 cups, how much sugar would he
need altogether?
8) Oliver ate a snack with 83.4 total calories. If the chips he ate were 32.70 calories, how
many 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 mb
and 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 16.2
miles 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
Adding and Subtracting Decimals
Solve each problem.
8
14.
Math www.CommonCoreSheets.com
Name:
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 he
walked 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 59.71
amps. When he turned on the second light, together they used 130.61 amps. How many
amps did just the second light use?
3) A botanist was measuring how tall her plant grew. After two weeks it had grown 12.58
inches. The second week alone it had grown 5.28 inches! How much did it grow the first
week?
4) Roger was weighing the amount of candy he received for Halloween. If he received 10.24
kg 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 they
weighed 123.1 grams. If the fools gold was 44.6 grams, how much did the gold nugget
weigh?
6) A computer programmer had two files. The first was 47.35 gigabyes and the second was
41.7 gigabytes. What is the total file size of both?
7) Sam was making some brownies and cupcakes for his school fundraiser. If the brownies
needed 3.84 cups of sugar and the cupcakes needed 1.9 cups, how much sugar would he
need altogether?
8) Oliver ate a snack with 83.4 total calories. If the chips he ate were 32.70 calories, how
many 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 mb
and 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 16.2
miles 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
Adding and Subtracting Decimals
Solve each problem.
8
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