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Year 7 Adding and Subtracting Decimals Worksheet — Level 1 — Answers

Answer sheet with worked solutions for the Year 7 decimals worksheet.

Success TutoringWorksheetsAnswer sheetYear 7 · Mathematics · Decimals

Year 7 Adding and Subtracting Decimals Worksheet — Level 1 — Answers

Line up the decimal points before you add or subtract.

1.
23.2
+15.3

Answer: 38.5

  1. Line up the decimal points
  2. 23.2 + 15.3 = 38.5
2.
12.2
+2.9

Answer: 15.1

  1. Line up the decimal points
  2. 12.2 + 2.9 = 15.1
3.
22.2
+32.9

Answer: 55.1

  1. Line up the decimal points
  2. 22.2 + 32.9 = 55.1
4.
36.0
+27.4

Answer: 63.4

  1. Line up the decimal points
  2. 36.0 + 27.4 = 63.4
5.
2.3
+33.0

Answer: 35.3

  1. Line up the decimal points
  2. 2.3 + 33.0 = 35.3
6.
19.5
−7.7

Answer: 11.8

  1. Line up the decimal points
  2. 19.5 − 7.7 = 11.8
7.
35.4
+26.8

Answer: 62.2

  1. Line up the decimal points
  2. 35.4 + 26.8 = 62.2
8.
26.3
−19.5

Answer: 6.8

  1. Line up the decimal points
  2. 26.3 − 19.5 = 6.8
9.
40.6
−37.9

Answer: 2.7

  1. Line up the decimal points
  2. 40.6 − 37.9 = 2.7
10.
10.5
+36.9

Answer: 47.4

  1. Line up the decimal points
  2. 10.5 + 36.9 = 47.4
11.
35.2
−27.3

Answer: 7.9

  1. Line up the decimal points
  2. 35.2 − 27.3 = 7.9
12.
38.2
+40.6

Answer: 78.8

  1. Line up the decimal points
  2. 38.2 + 40.6 = 78.8
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