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Decimal Addition and Subtraction
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Name:Date:
Decimal Addition and Subtraction
Line up decimal points before adding or subtracting. Show your work for each calculation.
Add and Subtract Decimals
1.Find 6.28 + 3.57. Show your work.
2.Find 9.03 − 4.68. Show your work.
3.Calculate each expression: (a) 7.46 + 2.35 (b) 8.20 − 3.76 (c) 5.08 + 4.67 (d) 10.00 − 6.59.
4.Choose the correct sum: 4.38 + 2.79 = ?
- 7.07
- 7.17
- 6.17
5.Choose the correct difference: 9.16 − 5.48 = ?
- 3.68
- 4.68
- 3.78
Decimal Math in Everyday Situations
6.Avery buys a sketchbook for $4.68 and colored pencils for $3.27. What is the total cost?
7.Riley has $12.00 and spends $7.85 on a game. How much money remains?
8.The afternoon temperature is 74.26°F, which is 8.47°F warmer than the morning. What was the morning temperature?
Explain and Extend
9.In your own words, explain why decimal points should be aligned when adding or subtracting decimals.
10.Round each number to the nearest whole number to estimate, then calculate exactly: 18.42 + 7.86 − 4.39.
11.Complete the statement with a decimal addition or subtraction skill: “I can .”
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