Year 3 Addition Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 3 addition worksheet.
Success TutoringWorksheetsAnswer sheetYear 3 · Mathematics · AdditionYear 3 Addition Worksheet — Level 1 — Practice Set 3 — Answers
Set out each sum in columns. Show any regrouping.
1.
382
+159
Answer: 541
- 2 + 9 = 11 → write 1, carry 1
- 8 + 5 + 1 = 14 → write 4, carry 1
- 3 + 1 + 1 = 5
2.
443
+556
Answer: 999
- 3 + 6 = 9
- 4 + 5 = 9
- 4 + 5 = 9
3.
246
+225
Answer: 471
- 6 + 5 = 11 → write 1, carry 1
- 4 + 2 + 1 = 7
- 2 + 2 = 4
4.
124
+452
Answer: 576
- 4 + 2 = 6
- 2 + 5 = 7
- 1 + 4 = 5
5.
257
+257
Answer: 514
- 7 + 7 = 14 → write 4, carry 1
- 5 + 5 + 1 = 11 → write 1, carry 1
- 2 + 2 + 1 = 5
6.
581
+220
Answer: 801
- 1 + 0 = 1
- 8 + 2 = 10 → write 0, carry 1
- 5 + 2 + 1 = 8
7.
469
+259
Answer: 728
- 9 + 9 = 18 → write 8, carry 1
- 6 + 5 + 1 = 12 → write 2, carry 1
- 4 + 2 + 1 = 7
8.
404
+297
Answer: 701
- 4 + 7 = 11 → write 1, carry 1
- 0 + 9 + 1 = 10 → write 0, carry 1
- 4 + 2 + 1 = 7
9.
523
+271
Answer: 794
- 3 + 1 = 4
- 2 + 7 = 9
- 5 + 2 = 7
10.
587
+280
Answer: 867
- 7 + 0 = 7
- 8 + 8 = 16 → write 6, carry 1
- 5 + 2 + 1 = 8
11.
717
+225
Answer: 942
- 7 + 5 = 12 → write 2, carry 1
- 1 + 2 + 1 = 4
- 7 + 2 = 9
12.
836
+131
Answer: 967
- 6 + 1 = 7
- 3 + 3 = 6
- 8 + 1 = 9
13.
382
+418
Answer: 800
- 2 + 8 = 10 → write 0, carry 1
- 8 + 1 + 1 = 10 → write 0, carry 1
- 3 + 4 + 1 = 8
14.
645
+152
Answer: 797
- 5 + 2 = 7
- 4 + 5 = 9
- 6 + 1 = 7
15.
799
+200
Answer: 999
- 9 + 0 = 9
- 9 + 0 = 9
- 7 + 2 = 9
16.
536
+432
Answer: 968
- 6 + 2 = 8
- 3 + 3 = 6
- 5 + 4 = 9
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