Year 4 Adding and Subtracting Decimals Worksheet — Level 3 — Answers
Answer sheet with worked solutions for the Year 4 decimals worksheet.
Year 4 Adding and Subtracting Decimals Worksheet — Level 3 — Answers
Line up the decimal points before you add or subtract.
1.
277.01
+194.21
Answer: 471.22
- Line up the decimal points
- 277.01 + 194.21 = 471.22
2.
358.66
−17.47
Answer: 341.19
- Line up the decimal points
- 358.66 − 17.47 = 341.19
3.
189.67
−22.82
Answer: 166.85
- Line up the decimal points
- 189.67 − 22.82 = 166.85
4.
313.35
+83.55
Answer: 396.90
- Line up the decimal points
- 313.35 + 83.55 = 396.90
5.
276.97
+168.77
Answer: 445.74
- Line up the decimal points
- 276.97 + 168.77 = 445.74
6.
184.79
−140.92
Answer: 43.87
- Line up the decimal points
- 184.79 − 140.92 = 43.87
7.
305.89
+64.64
Answer: 370.53
- Line up the decimal points
- 305.89 + 64.64 = 370.53
8.
229.00
+99.96
Answer: 328.96
- Line up the decimal points
- 229.00 + 99.96 = 328.96
9.
373.19
−38.04
Answer: 335.15
- Line up the decimal points
- 373.19 − 38.04 = 335.15
10.
93.49
+175.87
Answer: 269.36
- Line up the decimal points
- 93.49 + 175.87 = 269.36
11.
248.08
+66.82
Answer: 314.90
- Line up the decimal points
- 248.08 + 66.82 = 314.90
12.
266.84
+89.37
Answer: 356.21
- Line up the decimal points
- 266.84 + 89.37 = 356.21
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.
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