Year 6 Adding and Subtracting Decimals Worksheet — Level 1 — Answers
Answer sheet with worked solutions for the Year 6 decimals worksheet.
Year 6 Adding and Subtracting Decimals Worksheet — Level 1 — Answers
Line up the decimal points before you add or subtract.
1.
29.1
−13.9
Answer: 15.2
- Line up the decimal points
- 29.1 − 13.9 = 15.2
2.
10.5
+7.3
Answer: 17.8
- Line up the decimal points
- 10.5 + 7.3 = 17.8
3.
4.1
+14.7
Answer: 18.8
- Line up the decimal points
- 4.1 + 14.7 = 18.8
4.
41.1
+21.5
Answer: 62.6
- Line up the decimal points
- 41.1 + 21.5 = 62.6
5.
20.6
−7.5
Answer: 13.1
- Line up the decimal points
- 20.6 − 7.5 = 13.1
6.
9.2
+5.8
Answer: 15.0
- Line up the decimal points
- 9.2 + 5.8 = 15.0
7.
35.8
−20.8
Answer: 15.0
- Line up the decimal points
- 35.8 − 20.8 = 15.0
8.
21.6
−6.8
Answer: 14.8
- Line up the decimal points
- 21.6 − 6.8 = 14.8
9.
23.7
−23.5
Answer: 0.2
- Line up the decimal points
- 23.7 − 23.5 = 0.2
10.
42.8
−2.4
Answer: 40.4
- Line up the decimal points
- 42.8 − 2.4 = 40.4
11.
2.8
−1.8
Answer: 1.0
- Line up the decimal points
- 2.8 − 1.8 = 1.0
12.
55.2
+22.6
Answer: 77.8
- Line up the decimal points
- 55.2 + 22.6 = 77.8
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.