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.
125
+874
Answer: 999
- 5 + 4 = 9
- 2 + 7 = 9
- 1 + 8 = 9
2.
562
+437
Answer: 999
- 2 + 7 = 9
- 6 + 3 = 9
- 5 + 4 = 9
3.
713
+276
Answer: 989
- 3 + 6 = 9
- 1 + 7 = 8
- 7 + 2 = 9
4.
483
+212
Answer: 695
- 3 + 2 = 5
- 8 + 1 = 9
- 4 + 2 = 6
5.
102
+873
Answer: 975
- 2 + 3 = 5
- 0 + 7 = 7
- 1 + 8 = 9
6.
562
+274
Answer: 836
- 2 + 4 = 6
- 6 + 7 = 13 → write 3, carry 1
- 5 + 2 + 1 = 8
7.
412
+487
Answer: 899
- 2 + 7 = 9
- 1 + 8 = 9
- 4 + 4 = 8
8.
809
+190
Answer: 999
- 9 + 0 = 9
- 0 + 9 = 9
- 8 + 1 = 9
9.
232
+305
Answer: 537
- 2 + 5 = 7
- 3 + 0 = 3
- 2 + 3 = 5
10.
517
+405
Answer: 922
- 7 + 5 = 12 → write 2, carry 1
- 1 + 0 + 1 = 2
- 5 + 4 = 9
11.
282
+591
Answer: 873
- 2 + 1 = 3
- 8 + 9 = 17 → write 7, carry 1
- 2 + 5 + 1 = 8
12.
364
+365
Answer: 729
- 4 + 5 = 9
- 6 + 6 = 12 → write 2, carry 1
- 3 + 3 + 1 = 7
13.
572
+115
Answer: 687
- 2 + 5 = 7
- 7 + 1 = 8
- 5 + 1 = 6
14.
667
+116
Answer: 783
- 7 + 6 = 13 → write 3, carry 1
- 6 + 1 + 1 = 8
- 6 + 1 = 7
15.
606
+314
Answer: 920
- 6 + 4 = 10 → write 0, carry 1
- 0 + 1 + 1 = 2
- 6 + 3 = 9
16.
442
+272
Answer: 714
- 2 + 2 = 4
- 4 + 7 = 11 → write 1, carry 1
- 4 + 2 + 1 = 7
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