Year 5 Adding and Subtracting Decimals Worksheet — Level 3 — Practice Set 2 — 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 2 — Answers
Line up the decimal points before you add or subtract.
1.
370.58
+57.66
Answer: 428.24
- Line up the decimal points
- 370.58 + 57.66 = 428.24
2.
243.27
−54.60
Answer: 188.67
- Line up the decimal points
- 243.27 − 54.60 = 188.67
3.
375.67
−35.56
Answer: 340.11
- Line up the decimal points
- 375.67 − 35.56 = 340.11
4.
200.97
−136.03
Answer: 64.94
- Line up the decimal points
- 200.97 − 136.03 = 64.94
5.
139.80
+70.02
Answer: 209.82
- Line up the decimal points
- 139.80 + 70.02 = 209.82
6.
259.63
−13.22
Answer: 246.41
- Line up the decimal points
- 259.63 − 13.22 = 246.41
7.
126.07
−78.17
Answer: 47.90
- Line up the decimal points
- 126.07 − 78.17 = 47.90
8.
232.68
−141.09
Answer: 91.59
- Line up the decimal points
- 232.68 − 141.09 = 91.59
9.
145.51
−93.90
Answer: 51.61
- Line up the decimal points
- 145.51 − 93.90 = 51.61
10.
238.44
+37.53
Answer: 275.97
- Line up the decimal points
- 238.44 + 37.53 = 275.97
11.
273.78
−104.09
Answer: 169.69
- Line up the decimal points
- 273.78 − 104.09 = 169.69
12.
147.40
−56.12
Answer: 91.28
- Line up the decimal points
- 147.40 − 56.12 = 91.28
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.