Year 3 Addition Worksheet — Level 3 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 3 addition worksheet.
Success TutoringWorksheetsAnswer sheetYear 3 · Mathematics · AdditionYear 3 Addition Worksheet — Level 3 — Practice Set 4 — Answers
Set out each sum in columns. Show any regrouping.
1.
5640
+3871
Answer: 9511
- 0 + 1 = 1
- 4 + 7 = 11 → write 1, carry 1
- 6 + 8 + 1 = 15 → write 5, carry 1
- 5 + 3 + 1 = 9
2.
4433
+2214
Answer: 6647
- 3 + 4 = 7
- 3 + 1 = 4
- 4 + 2 = 6
- 4 + 2 = 6
3.
3572
+3756
Answer: 7328
- 2 + 6 = 8
- 7 + 5 = 12 → write 2, carry 1
- 5 + 7 + 1 = 13 → write 3, carry 1
- 3 + 3 + 1 = 7
4.
3780
+4819
Answer: 8599
- 0 + 9 = 9
- 8 + 1 = 9
- 7 + 8 = 15 → write 5, carry 1
- 3 + 4 + 1 = 8
5.
5216
+1144
Answer: 6360
- 6 + 4 = 10 → write 0, carry 1
- 1 + 4 + 1 = 6
- 2 + 1 = 3
- 5 + 1 = 6
6.
3839
+4283
Answer: 8122
- 9 + 3 = 12 → write 2, carry 1
- 3 + 8 + 1 = 12 → write 2, carry 1
- 8 + 2 + 1 = 11 → write 1, carry 1
- 3 + 4 + 1 = 8
7.
7670
+1204
Answer: 8874
- 0 + 4 = 4
- 7 + 0 = 7
- 6 + 2 = 8
- 7 + 1 = 8
8.
4546
+4995
Answer: 9541
- 6 + 5 = 11 → write 1, carry 1
- 4 + 9 + 1 = 14 → write 4, carry 1
- 5 + 9 + 1 = 15 → write 5, carry 1
- 4 + 4 + 1 = 9
9.
3032
+3764
Answer: 6796
- 2 + 4 = 6
- 3 + 6 = 9
- 0 + 7 = 7
- 3 + 3 = 6
10.
4153
+5082
Answer: 9235
- 3 + 2 = 5
- 5 + 8 = 13 → write 3, carry 1
- 1 + 0 + 1 = 2
- 4 + 5 = 9
11.
8665
+1334
Answer: 9999
- 5 + 4 = 9
- 6 + 3 = 9
- 6 + 3 = 9
- 8 + 1 = 9
12.
1392
+8607
Answer: 9999
- 2 + 7 = 9
- 9 + 0 = 9
- 3 + 6 = 9
- 1 + 8 = 9
13.
2967
+3344
Answer: 6311
- 7 + 4 = 11 → write 1, carry 1
- 6 + 4 + 1 = 11 → write 1, carry 1
- 9 + 3 + 1 = 13 → write 3, carry 1
- 2 + 3 + 1 = 6
14.
3600
+2193
Answer: 5793
- 0 + 3 = 3
- 0 + 9 = 9
- 6 + 1 = 7
- 3 + 2 = 5
15.
7502
+1272
Answer: 8774
- 2 + 2 = 4
- 0 + 7 = 7
- 5 + 2 = 7
- 7 + 1 = 8
16.
8793
+1206
Answer: 9999
- 3 + 6 = 9
- 9 + 0 = 9
- 7 + 2 = 9
- 8 + 1 = 9
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.
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