Year 6 Adding and Subtracting Decimals Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 6 decimals worksheet.
Success TutoringWorksheetsAnswer sheetYear 6 · Mathematics · DecimalsYear 6 Adding and Subtracting Decimals Worksheet — Level 1 — Practice Set 3 — Answers
Line up the decimal points before you add or subtract.
1.
53.5
+31.1
Answer: 84.6
- Line up the decimal points
- 53.5 + 31.1 = 84.6
2.
30.5
−2.7
Answer: 27.8
- Line up the decimal points
- 30.5 − 2.7 = 27.8
3.
7.2
−5.3
Answer: 1.9
- Line up the decimal points
- 7.2 − 5.3 = 1.9
4.
39.6
+31.8
Answer: 71.4
- Line up the decimal points
- 39.6 + 31.8 = 71.4
5.
25.8
−14.9
Answer: 10.9
- Line up the decimal points
- 25.8 − 14.9 = 10.9
6.
59.1
+31.8
Answer: 90.9
- Line up the decimal points
- 59.1 + 31.8 = 90.9
7.
11.4
+26.8
Answer: 38.2
- Line up the decimal points
- 11.4 + 26.8 = 38.2
8.
21.5
+39.8
Answer: 61.3
- Line up the decimal points
- 21.5 + 39.8 = 61.3
9.
35.7
−33.8
Answer: 1.9
- Line up the decimal points
- 35.7 − 33.8 = 1.9
10.
49.2
−27.5
Answer: 21.7
- Line up the decimal points
- 49.2 − 27.5 = 21.7
11.
29.8
−20.6
Answer: 9.2
- Line up the decimal points
- 29.8 − 20.6 = 9.2
12.
37.9
+7.0
Answer: 44.9
- Line up the decimal points
- 37.9 + 7.0 = 44.9
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.
- Celebrate what went well first, then pick one thing to work on next.