Year 7 Adding and Subtracting Decimals Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the Year 7 decimals worksheet.
Year 7 Adding and Subtracting Decimals Worksheet — Level 2 — Answers
Line up the decimal points before you add or subtract.
1.
32.37
−18.53
Answer: 13.84
- Line up the decimal points
- 32.37 − 18.53 = 13.84
2.
35.94
+5.94
Answer: 41.88
- Line up the decimal points
- 35.94 + 5.94 = 41.88
3.
27.48
+26.88
Answer: 54.36
- Line up the decimal points
- 27.48 + 26.88 = 54.36
4.
44.99
+22.17
Answer: 67.16
- Line up the decimal points
- 44.99 + 22.17 = 67.16
5.
45.96
−35.86
Answer: 10.10
- Line up the decimal points
- 45.96 − 35.86 = 10.10
6.
7.94
+15.08
Answer: 23.02
- Line up the decimal points
- 7.94 + 15.08 = 23.02
7.
29.36
−9.13
Answer: 20.23
- Line up the decimal points
- 29.36 − 9.13 = 20.23
8.
27.54
−25.89
Answer: 1.65
- Line up the decimal points
- 27.54 − 25.89 = 1.65
9.
47.74
−24.54
Answer: 23.20
- Line up the decimal points
- 47.74 − 24.54 = 23.20
10.
27.25
+13.68
Answer: 40.93
- Line up the decimal points
- 27.25 + 13.68 = 40.93
11.
5.65
+15.24
Answer: 20.89
- Line up the decimal points
- 5.65 + 15.24 = 20.89
12.
20.86
−1.98
Answer: 18.88
- Line up the decimal points
- 20.86 − 1.98 = 18.88
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.