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Year 8 Adding and Subtracting Decimals Worksheet — Level 1 — Answers

Answer sheet with worked solutions for the Year 8 decimals worksheet.

Success TutoringWorksheetsAnswer sheetYear 8 · Mathematics · Decimals

Year 8 Adding and Subtracting Decimals Worksheet — Level 1 — Answers

Line up the decimal points before you add or subtract.

1.
39.4
−2.1

Answer: 37.3

  1. Line up the decimal points
  2. 39.4 − 2.1 = 37.3
2.
19.2
−15.0

Answer: 4.2

  1. Line up the decimal points
  2. 19.2 − 15.0 = 4.2
3.
6.3
−4.3

Answer: 2.0

  1. Line up the decimal points
  2. 6.3 − 4.3 = 2.0
4.
23.6
−19.4

Answer: 4.2

  1. Line up the decimal points
  2. 23.6 − 19.4 = 4.2
5.
10.8
+10.7

Answer: 21.5

  1. Line up the decimal points
  2. 10.8 + 10.7 = 21.5
6.
19.8
+33.9

Answer: 53.7

  1. Line up the decimal points
  2. 19.8 + 33.9 = 53.7
7.
34.5
+26.4

Answer: 60.9

  1. Line up the decimal points
  2. 34.5 + 26.4 = 60.9
8.
36.2
+34.1

Answer: 70.3

  1. Line up the decimal points
  2. 36.2 + 34.1 = 70.3
9.
39.7
−15.9

Answer: 23.8

  1. Line up the decimal points
  2. 39.7 − 15.9 = 23.8
10.
13.1
−6.5

Answer: 6.6

  1. Line up the decimal points
  2. 13.1 − 6.5 = 6.6
11.
35.6
−16.6

Answer: 19.0

  1. Line up the decimal points
  2. 35.6 − 16.6 = 19.0
12.
47.5
+21.8

Answer: 69.3

  1. Line up the decimal points
  2. 47.5 + 21.8 = 69.3
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