Year 3 Addition Worksheet — Level 1 — Answers
Answer sheet with worked solutions for the Year 3 addition worksheet.
Success TutoringWorksheetsAnswer sheetYear 3 · Mathematics · AdditionYear 3 Addition Worksheet — Level 1 — Answers
Set out each sum in columns. Show any regrouping.
1.
266
+709
Answer: 975
- 6 + 9 = 15 → write 5, carry 1
- 6 + 0 + 1 = 7
- 2 + 7 = 9
2.
262
+118
Answer: 380
- 2 + 8 = 10 → write 0, carry 1
- 6 + 1 + 1 = 8
- 2 + 1 = 3
3.
854
+145
Answer: 999
- 4 + 5 = 9
- 5 + 4 = 9
- 8 + 1 = 9
4.
402
+419
Answer: 821
- 2 + 9 = 11 → write 1, carry 1
- 0 + 1 + 1 = 2
- 4 + 4 = 8
5.
529
+356
Answer: 885
- 9 + 6 = 15 → write 5, carry 1
- 2 + 5 + 1 = 8
- 5 + 3 = 8
6.
718
+281
Answer: 999
- 8 + 1 = 9
- 1 + 8 = 9
- 7 + 2 = 9
7.
205
+769
Answer: 974
- 5 + 9 = 14 → write 4, carry 1
- 0 + 6 + 1 = 7
- 2 + 7 = 9
8.
267
+591
Answer: 858
- 7 + 1 = 8
- 6 + 9 = 15 → write 5, carry 1
- 2 + 5 + 1 = 8
9.
683
+130
Answer: 813
- 3 + 0 = 3
- 8 + 3 = 11 → write 1, carry 1
- 6 + 1 + 1 = 8
10.
412
+525
Answer: 937
- 2 + 5 = 7
- 1 + 2 = 3
- 4 + 5 = 9
11.
538
+211
Answer: 749
- 8 + 1 = 9
- 3 + 1 = 4
- 5 + 2 = 7
12.
101
+898
Answer: 999
- 1 + 8 = 9
- 0 + 9 = 9
- 1 + 8 = 9
13.
878
+121
Answer: 999
- 8 + 1 = 9
- 7 + 2 = 9
- 8 + 1 = 9
14.
723
+105
Answer: 828
- 3 + 5 = 8
- 2 + 0 = 2
- 7 + 1 = 8
15.
830
+169
Answer: 999
- 0 + 9 = 9
- 3 + 6 = 9
- 8 + 1 = 9
16.
809
+145
Answer: 954
- 9 + 5 = 14 → write 4, carry 1
- 0 + 4 + 1 = 5
- 8 + 1 = 9
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