2nd Grade Addition Worksheet — Level 3 — Answers
Answer sheet with worked solutions for the 2nd Grade addition worksheet.
2nd Grade Addition Worksheet — Level 3 — Answers
Set out each sum in columns. Show any regrouping.
1.
3498
+5126
Answer: 8624
- 8 + 6 = 14 → write 4, carry 1
- 9 + 2 + 1 = 12 → write 2, carry 1
- 4 + 1 + 1 = 6
- 3 + 5 = 8
2.
8190
+1809
Answer: 9999
- 0 + 9 = 9
- 9 + 0 = 9
- 1 + 8 = 9
- 8 + 1 = 9
3.
2500
+6400
Answer: 8900
- 0 + 0 = 0
- 0 + 0 = 0
- 5 + 4 = 9
- 2 + 6 = 8
4.
7597
+1201
Answer: 8798
- 7 + 1 = 8
- 9 + 0 = 9
- 5 + 2 = 7
- 7 + 1 = 8
5.
8129
+1870
Answer: 9999
- 9 + 0 = 9
- 2 + 7 = 9
- 1 + 8 = 9
- 8 + 1 = 9
6.
4329
+2273
Answer: 6602
- 9 + 3 = 12 → write 2, carry 1
- 2 + 7 + 1 = 10 → write 0, carry 1
- 3 + 2 + 1 = 6
- 4 + 2 = 6
7.
1415
+6140
Answer: 7555
- 5 + 0 = 5
- 1 + 4 = 5
- 4 + 1 = 5
- 1 + 6 = 7
8.
7676
+1294
Answer: 8970
- 6 + 4 = 10 → write 0, carry 1
- 7 + 9 + 1 = 17 → write 7, carry 1
- 6 + 2 + 1 = 9
- 7 + 1 = 8
9.
3734
+6043
Answer: 9777
- 4 + 3 = 7
- 3 + 4 = 7
- 7 + 0 = 7
- 3 + 6 = 9
10.
8543
+1456
Answer: 9999
- 3 + 6 = 9
- 4 + 5 = 9
- 5 + 4 = 9
- 8 + 1 = 9
11.
5772
+1012
Answer: 6784
- 2 + 2 = 4
- 7 + 1 = 8
- 7 + 0 = 7
- 5 + 1 = 6
12.
3356
+2560
Answer: 5916
- 6 + 0 = 6
- 5 + 6 = 11 → write 1, carry 1
- 3 + 5 + 1 = 9
- 3 + 2 = 5
13.
5054
+4625
Answer: 9679
- 4 + 5 = 9
- 5 + 2 = 7
- 0 + 6 = 6
- 5 + 4 = 9
14.
6315
+3684
Answer: 9999
- 5 + 4 = 9
- 1 + 8 = 9
- 3 + 6 = 9
- 6 + 3 = 9
15.
6854
+3051
Answer: 9905
- 4 + 1 = 5
- 5 + 5 = 10 → write 0, carry 1
- 8 + 0 + 1 = 9
- 6 + 3 = 9
16.
6404
+3595
Answer: 9999
- 4 + 5 = 9
- 0 + 9 = 9
- 4 + 5 = 9
- 6 + 3 = 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.
- Celebrate what went well first, then pick one thing to work on next.
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