5th Grade Adding and Subtracting Decimals Worksheet — Level 1 — Answers
Answer sheet with worked solutions for the 5th Grade decimals worksheet.
5th Grade Adding and Subtracting Decimals Worksheet — Level 1 — Answers
Line up the decimal points before you add or subtract.
1.
14.9
−14.5
Answer: 0.4
- Line up the decimal points
- 14.9 − 14.5 = 0.4
2.
49.2
−5.4
Answer: 43.8
- Line up the decimal points
- 49.2 − 5.4 = 43.8
3.
31.2
−19.2
Answer: 12.0
- Line up the decimal points
- 31.2 − 19.2 = 12.0
4.
24.6
+26.2
Answer: 50.8
- Line up the decimal points
- 24.6 + 26.2 = 50.8
5.
57.9
+40.5
Answer: 98.4
- Line up the decimal points
- 57.9 + 40.5 = 98.4
6.
55.2
+14.5
Answer: 69.7
- Line up the decimal points
- 55.2 + 14.5 = 69.7
7.
32.1
+11.0
Answer: 43.1
- Line up the decimal points
- 32.1 + 11.0 = 43.1
8.
38.3
−11.3
Answer: 27.0
- Line up the decimal points
- 38.3 − 11.3 = 27.0
9.
47.5
−7.7
Answer: 39.8
- Line up the decimal points
- 47.5 − 7.7 = 39.8
10.
33.1
+37.7
Answer: 70.8
- Line up the decimal points
- 33.1 + 37.7 = 70.8
11.
48.8
+6.2
Answer: 55.0
- Line up the decimal points
- 48.8 + 6.2 = 55.0
12.
55.0
+30.2
Answer: 85.2
- Line up the decimal points
- 55.0 + 30.2 = 85.2
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.