Grade 2 addition worksheet for adding 2-digit numbers in columns without regrouping.

I'll solve each addition problem step by step, working through them carefully.

Let me work through all 20 problems:

Problem 1: 61 + 24
- Ones place: 1 + 4 = 5
- Tens place: 6 + 2 = 8
- Answer: 85

Problem 2: 41 + 42
- Ones place: 1 + 2 = 3
- Tens place: 4 + 4 = 8
- Answer: 83

Problem 3: 31 + 23
- Ones place: 1 + 3 = 4
- Tens place: 3 + 2 = 5
- Answer: 54

Problem 4: 1 + 53
- Ones place: 1 + 3 = 4
- Tens place: 0 + 5 = 5
- Answer: 54

Problem 5: 6 + 90
- Ones place: 6 + 0 = 6
- Tens place: 0 + 9 = 9
- Answer: 96

Problem 6: 83 + 13
- Ones place: 3 + 3 = 6
- Tens place: 8 + 1 = 9
- Answer: 96

Problem 7: 70 + 23
- Ones place: 0 + 3 = 3
- Tens place: 7 + 2 = 9
- Answer: 93

Problem 8: 61 + 12
- Ones place: 1 + 2 = 3
- Tens place: 6 + 1 = 7
- Answer: 73

Problem 9: 77 + 10
- Ones place: 7 + 0 = 7
- Tens place: 7 + 1 = 8
- Answer: 87

Problem 10: 7 + 71
- Ones place: 7 + 1 = 8
- Tens place: 0 + 7 = 7
- Answer: 78

Problem 11: 70 + 6
- Ones place: 0 + 6 = 6
- Tens place: 7 + 0 = 7
- Answer: 76

Problem 12: 81 + 15
- Ones place: 1 + 5 = 6
- Tens place: 8 + 1 = 9
- Answer: 96

Problem 13: 23 + 61
- Ones place: 3 + 1 = 4
- Tens place: 2 + 6 = 8
- Answer: 84

Problem 14: 42 + 6
- Ones place: 2 + 6 = 8
- Tens place: 4 + 0 = 4
- Answer: 48

Problem 15: 25 + 33
- Ones place: 5 + 3 = 8
- Tens place: 2 + 3 = 5
- Answer: 58

Problem 16: 18 + 30
- Ones place: 8 + 0 = 8
- Tens place: 1 + 3 = 4
- Answer: 48

Problem 17: 68 + 1
- Ones place: 8 + 1 = 9
- Tens place: 6 + 0 = 6
- Answer: 69

Problem 18: 82 + 12
- Ones place: 2 + 2 = 4
- Tens place: 8 + 1 = 9
- Answer: 94

Problem 19: 48 + 20
- Ones place: 8 + 0 = 8
- Tens place: 4 + 2 = 6
- Answer: 68

Problem 20: 24 + 54
- Ones place: 4 + 4 = 8
- Tens place: 2 + 5 = 7
- Answer: 78

Let me double-check my calculations to make sure they're all correct... ✓ All calculations verified.

Final Answer:
1) 85
2) 83
3) 54
4) 54
5) 96
6) 96
7) 93
8) 73
9) 87
10) 78
11) 76
12) 96
13) 84
14) 48
15) 58
16) 48
17) 69
18) 94
19) 68
20) 78