Year 8 Adding and Subtracting Decimals Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 8 decimals worksheet.
Success TutoringWorksheetsAnswer sheetYear 8 · Mathematics · DecimalsYear 8 Adding and Subtracting Decimals Worksheet — Level 2 — Practice Set 4 — Answers
Line up the decimal points before you add or subtract.
1.
10.67
−3.74
Answer: 6.93
- Line up the decimal points
- 10.67 − 3.74 = 6.93
2.
60.14
−7.87
Answer: 52.27
- Line up the decimal points
- 60.14 − 7.87 = 52.27
3.
8.83
−3.79
Answer: 5.04
- Line up the decimal points
- 8.83 − 3.79 = 5.04
4.
37.55
−20.99
Answer: 16.56
- Line up the decimal points
- 37.55 − 20.99 = 16.56
5.
47.04
+17.94
Answer: 64.98
- Line up the decimal points
- 47.04 + 17.94 = 64.98
6.
47.07
+18.21
Answer: 65.28
- Line up the decimal points
- 47.07 + 18.21 = 65.28
7.
33.89
+12.30
Answer: 46.19
- Line up the decimal points
- 33.89 + 12.30 = 46.19
8.
40.49
−2.22
Answer: 38.27
- Line up the decimal points
- 40.49 − 2.22 = 38.27
9.
11.21
+17.94
Answer: 29.15
- Line up the decimal points
- 11.21 + 17.94 = 29.15
10.
38.82
−5.34
Answer: 33.48
- Line up the decimal points
- 38.82 − 5.34 = 33.48
11.
37.71
+19.19
Answer: 56.90
- Line up the decimal points
- 37.71 + 19.19 = 56.90
12.
20.93
+25.74
Answer: 46.67
- Line up the decimal points
- 20.93 + 25.74 = 46.67
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.