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.
120.09
−67.31
Answer: 52.78
- Line up the decimal points
- 120.09 − 67.31 = 52.78
2.
263.48
−14.17
Answer: 249.31
- Line up the decimal points
- 263.48 − 14.17 = 249.31
3.
230.63
+93.25
Answer: 323.88
- Line up the decimal points
- 230.63 + 93.25 = 323.88
4.
343.18
−125.30
Answer: 217.88
- Line up the decimal points
- 343.18 − 125.30 = 217.88
5.
265.87
−45.16
Answer: 220.71
- Line up the decimal points
- 265.87 − 45.16 = 220.71
6.
197.95
+28.17
Answer: 226.12
- Line up the decimal points
- 197.95 + 28.17 = 226.12
7.
165.84
+14.61
Answer: 180.45
- Line up the decimal points
- 165.84 + 14.61 = 180.45
8.
199.29
−170.52
Answer: 28.77
- Line up the decimal points
- 199.29 − 170.52 = 28.77
9.
232.99
−21.25
Answer: 211.74
- Line up the decimal points
- 232.99 − 21.25 = 211.74
10.
48.64
+10.37
Answer: 59.01
- Line up the decimal points
- 48.64 + 10.37 = 59.01
11.
92.18
+59.46
Answer: 151.64
- Line up the decimal points
- 92.18 + 59.46 = 151.64
12.
195.59
−86.31
Answer: 109.28
- Line up the decimal points
- 195.59 − 86.31 = 109.28
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.