Year 4 Adding and Subtracting Decimals Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 4 decimals worksheet.
Success TutoringWorksheetsAnswer sheetYear 4 · Mathematics · DecimalsYear 4 Adding and Subtracting Decimals Worksheet — Level 1 — Practice Set 3 — Answers
Line up the decimal points before you add or subtract.
1.
29.1
−20.4
Answer: 8.7
- Line up the decimal points
- 29.1 − 20.4 = 8.7
2.
6.2
+26.0
Answer: 32.2
- Line up the decimal points
- 6.2 + 26.0 = 32.2
3.
8.4
+31.3
Answer: 39.7
- Line up the decimal points
- 8.4 + 31.3 = 39.7
4.
24.7
+18.7
Answer: 43.4
- Line up the decimal points
- 24.7 + 18.7 = 43.4
5.
19.8
−10.0
Answer: 9.8
- Line up the decimal points
- 19.8 − 10.0 = 9.8
6.
52.7
+19.1
Answer: 71.8
- Line up the decimal points
- 52.7 + 19.1 = 71.8
7.
20.6
+27.0
Answer: 47.6
- Line up the decimal points
- 20.6 + 27.0 = 47.6
8.
25.1
+32.6
Answer: 57.7
- Line up the decimal points
- 25.1 + 32.6 = 57.7
9.
43.5
−25.0
Answer: 18.5
- Line up the decimal points
- 43.5 − 25.0 = 18.5
10.
29.4
−1.8
Answer: 27.6
- Line up the decimal points
- 29.4 − 1.8 = 27.6
11.
49.4
+17.7
Answer: 67.1
- Line up the decimal points
- 49.4 + 17.7 = 67.1
12.
36.8
+33.9
Answer: 70.7
- Line up the decimal points
- 36.8 + 33.9 = 70.7
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
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