Year 5 Adding and Subtracting Decimals Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 5 decimals worksheet.
Year 5 Adding and Subtracting Decimals Worksheet — Level 1 — Practice Set 4 — Answers
Line up the decimal points before you add or subtract.
1.
4.0
+16.4
Answer: 20.4
- Line up the decimal points
- 4.0 + 16.4 = 20.4
2.
56.8
−18.5
Answer: 38.3
- Line up the decimal points
- 56.8 − 18.5 = 38.3
3.
22.6
+4.0
Answer: 26.6
- Line up the decimal points
- 22.6 + 4.0 = 26.6
4.
3.5
−1.4
Answer: 2.1
- Line up the decimal points
- 3.5 − 1.4 = 2.1
5.
30.0
+4.0
Answer: 34.0
- Line up the decimal points
- 30.0 + 4.0 = 34.0
6.
3.7
+7.1
Answer: 10.8
- Line up the decimal points
- 3.7 + 7.1 = 10.8
7.
11.9
+10.3
Answer: 22.2
- Line up the decimal points
- 11.9 + 10.3 = 22.2
8.
11.3
+17.5
Answer: 28.8
- Line up the decimal points
- 11.3 + 17.5 = 28.8
9.
17.5
+11.5
Answer: 29.0
- Line up the decimal points
- 17.5 + 11.5 = 29.0
10.
46.7
+6.0
Answer: 52.7
- Line up the decimal points
- 46.7 + 6.0 = 52.7
11.
16.9
+37.5
Answer: 54.4
- Line up the decimal points
- 16.9 + 37.5 = 54.4
12.
19.9
+10.9
Answer: 30.8
- Line up the decimal points
- 19.9 + 10.9 = 30.8
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.