Year 5 Adding and Subtracting Decimals Worksheet — Level 3 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 5 decimals worksheet.
Success TutoringWorksheetsAnswer sheetYear 5 · Mathematics · DecimalsYear 5 Adding and Subtracting Decimals Worksheet — Level 3 — Practice Set 3 — Answers
Line up the decimal points before you add or subtract.
1.
44.90
−44.49
Answer: 0.41
- Line up the decimal points
- 44.90 − 44.49 = 0.41
2.
273.38
−31.40
Answer: 241.98
- Line up the decimal points
- 273.38 − 31.40 = 241.98
3.
358.98
−132.05
Answer: 226.93
- Line up the decimal points
- 358.98 − 132.05 = 226.93
4.
329.22
+145.90
Answer: 475.12
- Line up the decimal points
- 329.22 + 145.90 = 475.12
5.
119.31
−63.09
Answer: 56.22
- Line up the decimal points
- 119.31 − 63.09 = 56.22
6.
110.80
−100.62
Answer: 10.18
- Line up the decimal points
- 110.80 − 100.62 = 10.18
7.
152.32
+96.80
Answer: 249.12
- Line up the decimal points
- 152.32 + 96.80 = 249.12
8.
42.62
+22.30
Answer: 64.92
- Line up the decimal points
- 42.62 + 22.30 = 64.92
9.
40.01
+121.53
Answer: 161.54
- Line up the decimal points
- 40.01 + 121.53 = 161.54
10.
127.39
+54.62
Answer: 182.01
- Line up the decimal points
- 127.39 + 54.62 = 182.01
11.
379.49
−87.73
Answer: 291.76
- Line up the decimal points
- 379.49 − 87.73 = 291.76
12.
68.78
−30.73
Answer: 38.05
- Line up the decimal points
- 68.78 − 30.73 = 38.05
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.