7th Grade Adding and Subtracting Decimals Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the 7th Grade decimals worksheet.
7th Grade Adding and Subtracting Decimals Worksheet — Level 2 — Answers
Line up the decimal points before you add or subtract.
1.
42.54
−6.97
Answer: 35.57
- Line up the decimal points
- 42.54 − 6.97 = 35.57
2.
44.73
+4.88
Answer: 49.61
- Line up the decimal points
- 44.73 + 4.88 = 49.61
3.
32.45
−4.59
Answer: 27.86
- Line up the decimal points
- 32.45 − 4.59 = 27.86
4.
34.15
−22.32
Answer: 11.83
- Line up the decimal points
- 34.15 − 22.32 = 11.83
5.
29.69
−23.31
Answer: 6.38
- Line up the decimal points
- 29.69 − 23.31 = 6.38
6.
16.33
+38.82
Answer: 55.15
- Line up the decimal points
- 16.33 + 38.82 = 55.15
7.
51.59
−9.03
Answer: 42.56
- Line up the decimal points
- 51.59 − 9.03 = 42.56
8.
23.15
+24.01
Answer: 47.16
- Line up the decimal points
- 23.15 + 24.01 = 47.16
9.
26.83
−13.85
Answer: 12.98
- Line up the decimal points
- 26.83 − 13.85 = 12.98
10.
29.12
−28.88
Answer: 0.24
- Line up the decimal points
- 29.12 − 28.88 = 0.24
11.
22.42
+19.13
Answer: 41.55
- Line up the decimal points
- 22.42 + 19.13 = 41.55
12.
1.46
+6.08
Answer: 7.54
- Line up the decimal points
- 1.46 + 6.08 = 7.54
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.