3rd Grade Addition Worksheet — Level 2 — Practice Set 2 — 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 2 — Answers
Set out each sum in columns. Show any regrouping.
1.
4972
+5027
Answer: 9999
- 2 + 7 = 9
- 7 + 2 = 9
- 9 + 0 = 9
- 4 + 5 = 9
2.
5556
+1206
Answer: 6762
- 6 + 6 = 12 → write 2, carry 1
- 5 + 0 + 1 = 6
- 5 + 2 = 7
- 5 + 1 = 6
3.
4809
+4464
Answer: 9273
- 9 + 4 = 13 → write 3, carry 1
- 0 + 6 + 1 = 7
- 8 + 4 = 12 → write 2, carry 1
- 4 + 4 + 1 = 9
4.
5631
+3633
Answer: 9264
- 1 + 3 = 4
- 3 + 3 = 6
- 6 + 6 = 12 → write 2, carry 1
- 5 + 3 + 1 = 9
5.
4909
+2465
Answer: 7374
- 9 + 5 = 14 → write 4, carry 1
- 0 + 6 + 1 = 7
- 9 + 4 = 13 → write 3, carry 1
- 4 + 2 + 1 = 7
6.
5154
+4845
Answer: 9999
- 4 + 5 = 9
- 5 + 4 = 9
- 1 + 8 = 9
- 5 + 4 = 9
7.
3364
+3868
Answer: 7232
- 4 + 8 = 12 → write 2, carry 1
- 6 + 6 + 1 = 13 → write 3, carry 1
- 3 + 8 + 1 = 12 → write 2, carry 1
- 3 + 3 + 1 = 7
8.
6033
+1632
Answer: 7665
- 3 + 2 = 5
- 3 + 3 = 6
- 0 + 6 = 6
- 6 + 1 = 7
9.
5766
+2153
Answer: 7919
- 6 + 3 = 9
- 6 + 5 = 11 → write 1, carry 1
- 7 + 1 + 1 = 9
- 5 + 2 = 7
10.
6556
+1609
Answer: 8165
- 6 + 9 = 15 → write 5, carry 1
- 5 + 0 + 1 = 6
- 5 + 6 = 11 → write 1, carry 1
- 6 + 1 + 1 = 8
11.
8212
+1335
Answer: 9547
- 2 + 5 = 7
- 1 + 3 = 4
- 2 + 3 = 5
- 8 + 1 = 9
12.
8889
+1110
Answer: 9999
- 9 + 0 = 9
- 8 + 1 = 9
- 8 + 1 = 9
- 8 + 1 = 9
13.
8382
+1136
Answer: 9518
- 2 + 6 = 8
- 8 + 3 = 11 → write 1, carry 1
- 3 + 1 + 1 = 5
- 8 + 1 = 9
14.
8793
+1206
Answer: 9999
- 3 + 6 = 9
- 9 + 0 = 9
- 7 + 2 = 9
- 8 + 1 = 9
15.
8152
+1159
Answer: 9311
- 2 + 9 = 11 → write 1, carry 1
- 5 + 5 + 1 = 11 → write 1, carry 1
- 1 + 1 + 1 = 3
- 8 + 1 = 9
16.
4328
+3770
Answer: 8098
- 8 + 0 = 8
- 2 + 7 = 9
- 3 + 7 = 10 → write 0, carry 1
- 4 + 3 + 1 = 8
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.