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.
15.83
+32.41
Answer: 48.24
- Line up the decimal points
- 15.83 + 32.41 = 48.24
2.
48.68
+10.13
Answer: 58.81
- Line up the decimal points
- 48.68 + 10.13 = 58.81
3.
26.89
+12.03
Answer: 38.92
- Line up the decimal points
- 26.89 + 12.03 = 38.92
4.
17.50
+33.50
Answer: 51.00
- Line up the decimal points
- 17.50 + 33.50 = 51.00
5.
39.27
−1.46
Answer: 37.81
- Line up the decimal points
- 39.27 − 1.46 = 37.81
6.
9.15
−6.17
Answer: 2.98
- Line up the decimal points
- 9.15 − 6.17 = 2.98
7.
21.63
+8.94
Answer: 30.57
- Line up the decimal points
- 21.63 + 8.94 = 30.57
8.
43.34
−12.53
Answer: 30.81
- Line up the decimal points
- 43.34 − 12.53 = 30.81
9.
37.52
+8.70
Answer: 46.22
- Line up the decimal points
- 37.52 + 8.70 = 46.22
10.
54.39
−17.60
Answer: 36.79
- Line up the decimal points
- 54.39 − 17.60 = 36.79
11.
51.78
−39.47
Answer: 12.31
- Line up the decimal points
- 51.78 − 39.47 = 12.31
12.
15.68
+6.08
Answer: 21.76
- Line up the decimal points
- 15.68 + 6.08 = 21.76
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.