Year 5 Adding and Subtracting Decimals Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 5 decimals worksheet.
Success TutoringWorksheetsAnswer sheetYear 5 · Mathematics · DecimalsYear 5 Adding and Subtracting Decimals Worksheet — Level 1 — Practice Set 3 — Answers
Line up the decimal points before you add or subtract.
1.
52.9
−1.6
Answer: 51.3
- Line up the decimal points
- 52.9 − 1.6 = 51.3
2.
8.8
+21.0
Answer: 29.8
- Line up the decimal points
- 8.8 + 21.0 = 29.8
3.
41.9
−27.7
Answer: 14.2
- Line up the decimal points
- 41.9 − 27.7 = 14.2
4.
10.8
+35.9
Answer: 46.7
- Line up the decimal points
- 10.8 + 35.9 = 46.7
5.
37.2
−7.1
Answer: 30.1
- Line up the decimal points
- 37.2 − 7.1 = 30.1
6.
40.1
−7.6
Answer: 32.5
- Line up the decimal points
- 40.1 − 7.6 = 32.5
7.
10.9
+26.4
Answer: 37.3
- Line up the decimal points
- 10.9 + 26.4 = 37.3
8.
46.9
+31.2
Answer: 78.1
- Line up the decimal points
- 46.9 + 31.2 = 78.1
9.
4.8
+19.1
Answer: 23.9
- Line up the decimal points
- 4.8 + 19.1 = 23.9
10.
25.1
+14.1
Answer: 39.2
- Line up the decimal points
- 25.1 + 14.1 = 39.2
11.
46.1
−8.2
Answer: 37.9
- Line up the decimal points
- 46.1 − 8.2 = 37.9
12.
59.0
−24.4
Answer: 34.6
- Line up the decimal points
- 59.0 − 24.4 = 34.6
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
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