5th Grade Adding and Subtracting Decimals Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the 5th Grade decimals worksheet.
5th Grade Adding and Subtracting Decimals Worksheet — Level 1 — Practice Set 3 — Answers
Line up the decimal points before you add or subtract.
1.
37.0
+4.6
Answer: 41.6
- Line up the decimal points
- 37.0 + 4.6 = 41.6
2.
24.0
−7.2
Answer: 16.8
- Line up the decimal points
- 24.0 − 7.2 = 16.8
3.
41.3
+9.5
Answer: 50.8
- Line up the decimal points
- 41.3 + 9.5 = 50.8
4.
43.3
+36.3
Answer: 79.6
- Line up the decimal points
- 43.3 + 36.3 = 79.6
5.
47.6
+26.4
Answer: 74.0
- Line up the decimal points
- 47.6 + 26.4 = 74.0
6.
23.3
−22.0
Answer: 1.3
- Line up the decimal points
- 23.3 − 22.0 = 1.3
7.
8.9
+14.8
Answer: 23.7
- Line up the decimal points
- 8.9 + 14.8 = 23.7
8.
9.2
+40.4
Answer: 49.6
- Line up the decimal points
- 9.2 + 40.4 = 49.6
9.
26.0
+34.5
Answer: 60.5
- Line up the decimal points
- 26.0 + 34.5 = 60.5
10.
60.7
−2.2
Answer: 58.5
- Line up the decimal points
- 60.7 − 2.2 = 58.5
11.
36.2
−10.5
Answer: 25.7
- Line up the decimal points
- 36.2 − 10.5 = 25.7
12.
33.9
+8.1
Answer: 42.0
- Line up the decimal points
- 33.9 + 8.1 = 42.0
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.