Year 6 Adding and Subtracting Decimals Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 6 decimals worksheet.
Year 6 Adding and Subtracting Decimals Worksheet — Level 1 — Practice Set 2 — Answers
Line up the decimal points before you add or subtract.
1.
51.5
+19.3
Answer: 70.8
- Line up the decimal points
- 51.5 + 19.3 = 70.8
2.
8.9
−2.4
Answer: 6.5
- Line up the decimal points
- 8.9 − 2.4 = 6.5
3.
2.8
+12.5
Answer: 15.3
- Line up the decimal points
- 2.8 + 12.5 = 15.3
4.
28.5
−12.6
Answer: 15.9
- Line up the decimal points
- 28.5 − 12.6 = 15.9
5.
45.2
+33.7
Answer: 78.9
- Line up the decimal points
- 45.2 + 33.7 = 78.9
6.
55.0
+5.7
Answer: 60.7
- Line up the decimal points
- 55.0 + 5.7 = 60.7
7.
3.9
+39.8
Answer: 43.7
- Line up the decimal points
- 3.9 + 39.8 = 43.7
8.
31.8
+35.5
Answer: 67.3
- Line up the decimal points
- 31.8 + 35.5 = 67.3
9.
33.4
−8.3
Answer: 25.1
- Line up the decimal points
- 33.4 − 8.3 = 25.1
10.
50.2
+2.3
Answer: 52.5
- Line up the decimal points
- 50.2 + 2.3 = 52.5
11.
56.6
+23.4
Answer: 80.0
- Line up the decimal points
- 56.6 + 23.4 = 80.0
12.
49.7
−19.1
Answer: 30.6
- Line up the decimal points
- 49.7 − 19.1 = 30.6
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.
- Celebrate what went well first, then pick one thing to work on next.