2nd Grade Addition Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 2nd Grade addition worksheet.
2nd Grade Addition Worksheet — Level 1 — Practice Set 4 — Answers
Set out each sum in columns. Show any regrouping.
1.
55
+31
Answer: 86
- 5 + 1 = 6
- 5 + 3 = 8
2.
68
+22
Answer: 90
- 8 + 2 = 10 → write 0, carry 1
- 6 + 2 + 1 = 9
3.
24
+20
Answer: 44
- 4 + 0 = 4
- 2 + 2 = 4
4.
88
+11
Answer: 99
- 8 + 1 = 9
- 8 + 1 = 9
5.
29
+60
Answer: 89
- 9 + 0 = 9
- 2 + 6 = 8
6.
19
+80
Answer: 99
- 9 + 0 = 9
- 1 + 8 = 9
7.
70
+21
Answer: 91
- 0 + 1 = 1
- 7 + 2 = 9
8.
59
+29
Answer: 88
- 9 + 9 = 18 → write 8, carry 1
- 5 + 2 + 1 = 8
9.
40
+51
Answer: 91
- 0 + 1 = 1
- 4 + 5 = 9
10.
33
+46
Answer: 79
- 3 + 6 = 9
- 3 + 4 = 7
11.
43
+11
Answer: 54
- 3 + 1 = 4
- 4 + 1 = 5
12.
44
+21
Answer: 65
- 4 + 1 = 5
- 4 + 2 = 6
13.
29
+70
Answer: 99
- 9 + 0 = 9
- 2 + 7 = 9
14.
82
+17
Answer: 99
- 2 + 7 = 9
- 8 + 1 = 9
15.
33
+49
Answer: 82
- 3 + 9 = 12 → write 2, carry 1
- 3 + 4 + 1 = 8
16.
19
+54
Answer: 73
- 9 + 4 = 13 → write 3, carry 1
- 1 + 5 + 1 = 7
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.