3rd Grade Addition Worksheet — Level 2 — Practice Set 3 — Answers
Answer sheet with worked solutions for the 3rd Grade addition worksheet.
Success TutoringWorksheetsAnswer sheet3rd Grade · Mathematics · Addition3rd Grade Addition Worksheet — Level 2 — Practice Set 3 — Answers
Set out each sum in columns. Show any regrouping.
1.
2329
+3671
Answer: 6000
- 9 + 1 = 10 → write 0, carry 1
- 2 + 7 + 1 = 10 → write 0, carry 1
- 3 + 6 + 1 = 10 → write 0, carry 1
- 2 + 3 + 1 = 6
2.
5105
+4634
Answer: 9739
- 5 + 4 = 9
- 0 + 3 = 3
- 1 + 6 = 7
- 5 + 4 = 9
3.
2653
+1239
Answer: 3892
- 3 + 9 = 12 → write 2, carry 1
- 5 + 3 + 1 = 9
- 6 + 2 = 8
- 2 + 1 = 3
4.
3295
+4017
Answer: 7312
- 5 + 7 = 12 → write 2, carry 1
- 9 + 1 + 1 = 11 → write 1, carry 1
- 2 + 0 + 1 = 3
- 3 + 4 = 7
5.
1916
+5407
Answer: 7323
- 6 + 7 = 13 → write 3, carry 1
- 1 + 0 + 1 = 2
- 9 + 4 = 13 → write 3, carry 1
- 1 + 5 + 1 = 7
6.
7824
+2062
Answer: 9886
- 4 + 2 = 6
- 2 + 6 = 8
- 8 + 0 = 8
- 7 + 2 = 9
7.
4802
+2384
Answer: 7186
- 2 + 4 = 6
- 0 + 8 = 8
- 8 + 3 = 11 → write 1, carry 1
- 4 + 2 + 1 = 7
8.
6042
+2326
Answer: 8368
- 2 + 6 = 8
- 4 + 2 = 6
- 0 + 3 = 3
- 6 + 2 = 8
9.
7567
+2432
Answer: 9999
- 7 + 2 = 9
- 6 + 3 = 9
- 5 + 4 = 9
- 7 + 2 = 9
10.
6442
+2411
Answer: 8853
- 2 + 1 = 3
- 4 + 1 = 5
- 4 + 4 = 8
- 6 + 2 = 8
11.
7714
+2275
Answer: 9989
- 4 + 5 = 9
- 1 + 7 = 8
- 7 + 2 = 9
- 7 + 2 = 9
12.
2579
+2719
Answer: 5298
- 9 + 9 = 18 → write 8, carry 1
- 7 + 1 + 1 = 9
- 5 + 7 = 12 → write 2, carry 1
- 2 + 2 + 1 = 5
13.
4494
+3679
Answer: 8173
- 4 + 9 = 13 → write 3, carry 1
- 9 + 7 + 1 = 17 → write 7, carry 1
- 4 + 6 + 1 = 11 → write 1, carry 1
- 4 + 3 + 1 = 8
14.
7110
+2889
Answer: 9999
- 0 + 9 = 9
- 1 + 8 = 9
- 1 + 8 = 9
- 7 + 2 = 9
15.
6464
+1396
Answer: 7860
- 4 + 6 = 10 → write 0, carry 1
- 6 + 9 + 1 = 16 → write 6, carry 1
- 4 + 3 + 1 = 8
- 6 + 1 = 7
16.
7910
+2089
Answer: 9999
- 0 + 9 = 9
- 1 + 8 = 9
- 9 + 0 = 9
- 7 + 2 = 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.
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