Year 3 Addition Worksheet — Level 1 — 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 1 — Practice Set 4 — Answers
Set out each sum in columns. Show any regrouping.
1.
625
+166
Answer: 791
- 5 + 6 = 11 → write 1, carry 1
- 2 + 6 + 1 = 9
- 6 + 1 = 7
2.
510
+466
Answer: 976
- 0 + 6 = 6
- 1 + 6 = 7
- 5 + 4 = 9
3.
672
+171
Answer: 843
- 2 + 1 = 3
- 7 + 7 = 14 → write 4, carry 1
- 6 + 1 + 1 = 8
4.
430
+180
Answer: 610
- 0 + 0 = 0
- 3 + 8 = 11 → write 1, carry 1
- 4 + 1 + 1 = 6
5.
573
+417
Answer: 990
- 3 + 7 = 10 → write 0, carry 1
- 7 + 1 + 1 = 9
- 5 + 4 = 9
6.
577
+422
Answer: 999
- 7 + 2 = 9
- 7 + 2 = 9
- 5 + 4 = 9
7.
845
+113
Answer: 958
- 5 + 3 = 8
- 4 + 1 = 5
- 8 + 1 = 9
8.
428
+159
Answer: 587
- 8 + 9 = 17 → write 7, carry 1
- 2 + 5 + 1 = 8
- 4 + 1 = 5
9.
568
+124
Answer: 692
- 8 + 4 = 12 → write 2, carry 1
- 6 + 2 + 1 = 9
- 5 + 1 = 6
10.
407
+181
Answer: 588
- 7 + 1 = 8
- 0 + 8 = 8
- 4 + 1 = 5
11.
503
+148
Answer: 651
- 3 + 8 = 11 → write 1, carry 1
- 0 + 4 + 1 = 5
- 5 + 1 = 6
12.
856
+125
Answer: 981
- 6 + 5 = 11 → write 1, carry 1
- 5 + 2 + 1 = 8
- 8 + 1 = 9
13.
743
+256
Answer: 999
- 3 + 6 = 9
- 4 + 5 = 9
- 7 + 2 = 9
14.
893
+106
Answer: 999
- 3 + 6 = 9
- 9 + 0 = 9
- 8 + 1 = 9
15.
762
+144
Answer: 906
- 2 + 4 = 6
- 6 + 4 = 10 → write 0, carry 1
- 7 + 1 + 1 = 9
16.
251
+649
Answer: 900
- 1 + 9 = 10 → write 0, carry 1
- 5 + 4 + 1 = 10 → write 0, carry 1
- 2 + 6 + 1 = 9
Marking tips
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