Year 7 Adding and Subtracting Decimals Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 7 decimals worksheet.
Success TutoringWorksheetsAnswer sheetYear 7 · Mathematics · DecimalsYear 7 Adding and Subtracting Decimals Worksheet — Level 1 — Practice Set 3 — Answers
Line up the decimal points before you add or subtract.
1.
18.1
−14.0
Answer: 4.1
- Line up the decimal points
- 18.1 − 14.0 = 4.1
2.
21.4
+17.7
Answer: 39.1
- Line up the decimal points
- 21.4 + 17.7 = 39.1
3.
38.8
+10.0
Answer: 48.8
- Line up the decimal points
- 38.8 + 10.0 = 48.8
4.
46.7
−30.7
Answer: 16.0
- Line up the decimal points
- 46.7 − 30.7 = 16.0
5.
42.0
+24.1
Answer: 66.1
- Line up the decimal points
- 42.0 + 24.1 = 66.1
6.
60.2
+19.4
Answer: 79.6
- Line up the decimal points
- 60.2 + 19.4 = 79.6
7.
28.6
−24.6
Answer: 4.0
- Line up the decimal points
- 28.6 − 24.6 = 4.0
8.
31.7
−17.4
Answer: 14.3
- Line up the decimal points
- 31.7 − 17.4 = 14.3
9.
5.0
+7.0
Answer: 12.0
- Line up the decimal points
- 5.0 + 7.0 = 12.0
10.
29.2
+25.8
Answer: 55.0
- Line up the decimal points
- 29.2 + 25.8 = 55.0
11.
25.9
+4.9
Answer: 30.8
- Line up the decimal points
- 25.9 + 4.9 = 30.8
12.
51.7
+10.7
Answer: 62.4
- Line up the decimal points
- 51.7 + 10.7 = 62.4
Marking tips
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