5th Grade Adding and Subtracting Decimals Worksheet — Level 2 — Practice Set 3 — Answers
Answer sheet with worked solutions for the 5th Grade decimals worksheet.
5th Grade Adding and Subtracting Decimals Worksheet — Level 2 — Practice Set 3 — Answers
Line up the decimal points before you add or subtract.
1.
51.30
+26.48
Answer: 77.78
- Line up the decimal points
- 51.30 + 26.48 = 77.78
2.
23.73
+12.09
Answer: 35.82
- Line up the decimal points
- 23.73 + 12.09 = 35.82
3.
17.26
−2.09
Answer: 15.17
- Line up the decimal points
- 17.26 − 2.09 = 15.17
4.
53.68
+34.98
Answer: 88.66
- Line up the decimal points
- 53.68 + 34.98 = 88.66
5.
39.98
−2.02
Answer: 37.96
- Line up the decimal points
- 39.98 − 2.02 = 37.96
6.
39.72
+38.59
Answer: 78.31
- Line up the decimal points
- 39.72 + 38.59 = 78.31
7.
52.60
−26.44
Answer: 26.16
- Line up the decimal points
- 52.60 − 26.44 = 26.16
8.
53.48
+35.07
Answer: 88.55
- Line up the decimal points
- 53.48 + 35.07 = 88.55
9.
25.15
+21.93
Answer: 47.08
- Line up the decimal points
- 25.15 + 21.93 = 47.08
10.
50.72
+12.35
Answer: 63.07
- Line up the decimal points
- 50.72 + 12.35 = 63.07
11.
38.97
+22.41
Answer: 61.38
- Line up the decimal points
- 38.97 + 22.41 = 61.38
12.
10.97
+9.65
Answer: 20.62
- Line up the decimal points
- 10.97 + 9.65 = 20.62
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.