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7th Grade Adding and Subtracting Decimals Worksheet — Level 1 — Practice Set 3 — Answers

Answer sheet with worked solutions for the 7th Grade decimals worksheet.

Success TutoringWorksheetsAnswer sheet7th Grade · Mathematics · Decimals

7th Grade Adding and Subtracting Decimals Worksheet — Level 1 — Practice Set 3 — Answers

Line up the decimal points before you add or subtract.

1.
4.2
+13.8

Answer: 18.0

  1. Line up the decimal points
  2. 4.2 + 13.8 = 18.0
2.
48.9
+8.4

Answer: 57.3

  1. Line up the decimal points
  2. 48.9 + 8.4 = 57.3
3.
19.7
−16.5

Answer: 3.2

  1. Line up the decimal points
  2. 19.7 − 16.5 = 3.2
4.
14.5
−2.5

Answer: 12.0

  1. Line up the decimal points
  2. 14.5 − 2.5 = 12.0
5.
25.9
−4.7

Answer: 21.2

  1. Line up the decimal points
  2. 25.9 − 4.7 = 21.2
6.
27.9
−5.9

Answer: 22.0

  1. Line up the decimal points
  2. 27.9 − 5.9 = 22.0
7.
45.9
−23.0

Answer: 22.9

  1. Line up the decimal points
  2. 45.9 − 23.0 = 22.9
8.
55.6
+8.8

Answer: 64.4

  1. Line up the decimal points
  2. 55.6 + 8.8 = 64.4
9.
6.7
+38.5

Answer: 45.2

  1. Line up the decimal points
  2. 6.7 + 38.5 = 45.2
10.
16.8
+9.5

Answer: 26.3

  1. Line up the decimal points
  2. 16.8 + 9.5 = 26.3
11.
6.7
+9.2

Answer: 15.9

  1. Line up the decimal points
  2. 6.7 + 9.2 = 15.9
12.
14.1
+36.2

Answer: 50.3

  1. Line up the decimal points
  2. 14.1 + 36.2 = 50.3
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