7th Grade Adding and Subtracting Decimals Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 7th Grade decimals worksheet.
7th Grade Adding and Subtracting Decimals Worksheet — Level 2 — Practice Set 4 — Answers
Line up the decimal points before you add or subtract.
1.
28.95
−16.20
Answer: 12.75
- Line up the decimal points
- 28.95 − 16.20 = 12.75
2.
54.82
+40.67
Answer: 95.49
- Line up the decimal points
- 54.82 + 40.67 = 95.49
3.
12.29
+21.24
Answer: 33.53
- Line up the decimal points
- 12.29 + 21.24 = 33.53
4.
50.74
+23.50
Answer: 74.24
- Line up the decimal points
- 50.74 + 23.50 = 74.24
5.
25.36
+2.80
Answer: 28.16
- Line up the decimal points
- 25.36 + 2.80 = 28.16
6.
9.24
+20.04
Answer: 29.28
- Line up the decimal points
- 9.24 + 20.04 = 29.28
7.
32.41
+9.07
Answer: 41.48
- Line up the decimal points
- 32.41 + 9.07 = 41.48
8.
52.43
−4.16
Answer: 48.27
- Line up the decimal points
- 52.43 − 4.16 = 48.27
9.
45.91
+26.94
Answer: 72.85
- Line up the decimal points
- 45.91 + 26.94 = 72.85
10.
27.70
+22.13
Answer: 49.83
- Line up the decimal points
- 27.70 + 22.13 = 49.83
11.
21.15
+40.63
Answer: 61.78
- Line up the decimal points
- 21.15 + 40.63 = 61.78
12.
14.47
+11.84
Answer: 26.31
- Line up the decimal points
- 14.47 + 11.84 = 26.31
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.