3rd Grade Addition Worksheet — Level 1 — 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 1 — Practice Set 2 — Answers
Set out each sum in columns. Show any regrouping.
1.
841
+139
Answer: 980
- 1 + 9 = 10 → write 0, carry 1
- 4 + 3 + 1 = 8
- 8 + 1 = 9
2.
557
+276
Answer: 833
- 7 + 6 = 13 → write 3, carry 1
- 5 + 7 + 1 = 13 → write 3, carry 1
- 5 + 2 + 1 = 8
3.
404
+275
Answer: 679
- 4 + 5 = 9
- 0 + 7 = 7
- 4 + 2 = 6
4.
242
+596
Answer: 838
- 2 + 6 = 8
- 4 + 9 = 13 → write 3, carry 1
- 2 + 5 + 1 = 8
5.
151
+301
Answer: 452
- 1 + 1 = 2
- 5 + 0 = 5
- 1 + 3 = 4
6.
694
+174
Answer: 868
- 4 + 4 = 8
- 9 + 7 = 16 → write 6, carry 1
- 6 + 1 + 1 = 8
7.
277
+625
Answer: 902
- 7 + 5 = 12 → write 2, carry 1
- 7 + 2 + 1 = 10 → write 0, carry 1
- 2 + 6 + 1 = 9
8.
415
+584
Answer: 999
- 5 + 4 = 9
- 1 + 8 = 9
- 4 + 5 = 9
9.
845
+154
Answer: 999
- 5 + 4 = 9
- 4 + 5 = 9
- 8 + 1 = 9
10.
154
+706
Answer: 860
- 4 + 6 = 10 → write 0, carry 1
- 5 + 0 + 1 = 6
- 1 + 7 = 8
11.
287
+712
Answer: 999
- 7 + 2 = 9
- 8 + 1 = 9
- 2 + 7 = 9
12.
159
+318
Answer: 477
- 9 + 8 = 17 → write 7, carry 1
- 5 + 1 + 1 = 7
- 1 + 3 = 4
13.
347
+185
Answer: 532
- 7 + 5 = 12 → write 2, carry 1
- 4 + 8 + 1 = 13 → write 3, carry 1
- 3 + 1 + 1 = 5
14.
675
+285
Answer: 960
- 5 + 5 = 10 → write 0, carry 1
- 7 + 8 + 1 = 16 → write 6, carry 1
- 6 + 2 + 1 = 9
15.
862
+137
Answer: 999
- 2 + 7 = 9
- 6 + 3 = 9
- 8 + 1 = 9
16.
422
+144
Answer: 566
- 2 + 4 = 6
- 2 + 4 = 6
- 4 + 1 = 5
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