2nd Grade Addition and Subtraction Worksheets with Answer Key - Free Printable

Let's solve each of the addition and subtraction problems on the worksheet step by step. I'll go through all 30 problems and provide the correct answers with brief explanations.

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Problem 1:

85 - 27
- 5 - 7 can't happen, so borrow: 15 - 7 = 8
- 7 (after borrowing) - 2 = 5
✔ Answer: 58

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Problem 2:

93 - 31
- 3 - 1 = 2
- 9 - 3 = 6
✔ Answer: 62

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Problem 3:

25 + 25
- 5 + 5 = 10 → write 0, carry 1
- 2 + 2 + 1 = 5
✔ Answer: 50

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Problem 4:

43 + 11
- 3 + 1 = 4
- 4 + 1 = 5
✔ Answer: 54

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Problem 5:

17 - 17
- 17 minus itself is 0
✔ Answer: 0

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Problem 6:

37 - 27
- 7 - 7 = 0
- 3 - 2 = 1
✔ Answer: 10

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Problem 7:

33 - 28
- 3 - 8 can't happen → borrow: 13 - 8 = 5
- 2 (after borrowing) - 2 = 0
✔ Answer: 5

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Problem 8:

61 + 14
- 1 + 4 = 5
- 6 + 1 = 7
✔ Answer: 75

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Problem 9:

52 + 33
- 2 + 3 = 5
- 5 + 3 = 8
✔ Answer: 85

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Problem 10:

44 - 33
- 4 - 3 = 1
- 4 - 3 = 1
✔ Answer: 11

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Problem 11:

54 + 23
- 4 + 3 = 7
- 5 + 2 = 7
✔ Answer: 77

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Problem 12:

64 - 21
- 4 - 1 = 3
- 6 - 2 = 4
✔ Answer: 43

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Problem 13:

97 - 39
- 7 - 9 can't happen → borrow: 17 - 9 = 8
- 8 (after borrowing) - 3 = 5
✔ Answer: 58

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Problem 14:

76 + 26
- 6 + 6 = 12 → write 2, carry 1
- 7 + 2 + 1 = 10
✔ Answer: 102

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Problem 15:

84 - 16
- 4 - 6 can't happen → borrow: 14 - 6 = 8
- 7 (after borrowing) - 1 = 6
✔ Answer: 68

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Problem 16:

88 - 12
- 8 - 2 = 6
- 8 - 1 = 7
✔ Answer: 76

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Problem 17:

45 - 32
- 5 - 2 = 3
- 4 - 3 = 1
✔ Answer: 13

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Problem 18:

40 - 39
- 0 - 9 can't happen → borrow: 10 - 9 = 1
- 3 (after borrowing) - 3 = 0
✔ Answer: 1

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Problem 19:

39 + 74
- 9 + 4 = 13 → write 3, carry 1
- 3 + 7 + 1 = 11
✔ Answer: 113

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Problem 20:

55 + 66
- 5 + 6 = 11 → write 1, carry 1
- 5 + 6 + 1 = 12
✔ Answer: 121

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Problem 21:

47 - 18
- 7 - 8 can't happen → borrow: 17 - 8 = 9
- 3 (after borrowing) - 1 = 2
✔ Answer: 29

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Problem 22:

58 + 63
- 8 + 3 = 11 → write 1, carry 1
- 5 + 6 + 1 = 12
✔ Answer: 121

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Problem 23:

62 - 38
- 2 - 8 can't happen → borrow: 12 - 8 = 4
- 5 (after borrowing) - 3 = 2
✔ Answer: 24

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Problem 24:

28 - 19
- 8 - 9 can't happen → borrow: 18 - 9 = 9
- 1 (after borrowing) - 1 = 0
✔ Answer: 9

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Problem 25:

98 + 87
- 8 + 7 = 15 → write 5, carry 1
- 9 + 8 + 1 = 18
✔ Answer: 185

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Problem 26:

41 - 16
- 1 - 6 can't happen → borrow: 11 - 6 = 5
- 3 (after borrowing) - 1 = 2
✔ Answer: 25

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Problem 27:

53 - 11
- 3 - 1 = 2
- 5 - 1 = 4
✔ Answer: 42

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Problem 28:

95 - 71
- 5 - 1 = 4
- 9 - 7 = 2
✔ Answer: 24

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Problem 29:

44 - 13
- 4 - 3 = 1
- 4 - 1 = 3
✔ Answer: 31

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Problem 30:

33 - 19
- 3 - 9 can't happen → borrow: 13 - 9 = 4
- 2 (after borrowing) - 1 = 1
✔ Answer: 14

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✔ Final Answers:

| # | Problem | Answer |
|---|-------------|--------|
| 1 | 85 - 27 | 58 |
| 2 | 93 - 31 | 62 |
| 3 | 25 + 25 | 50 |
| 4 | 43 + 11 | 54 |
| 5 | 17 - 17 | 0 |
| 6 | 37 - 27 | 10 |
| 7 | 33 - 28 | 5 |
| 8 | 61 + 14 | 75 |
| 9 | 52 + 33 | 85 |
|10 | 44 - 33 | 11 |
|11 | 54 + 23 | 77 |
|12 | 64 - 21 | 43 |
|13 | 97 - 39 | 58 |
|14 | 76 + 26 | 102 |
|15 | 84 - 16 | 68 |
|16 | 88 - 12 | 76 |
|17 | 45 - 32 | 13 |
|18 | 40 - 39 | 1 |
|19 | 39 + 74 | 113 |
|20 | 55 + 66 | 121 |
|21 | 47 - 18 | 29 |
|22 | 58 + 63 | 121 |
|23 | 62 - 38 | 24 |
|24 | 28 - 19 | 9 |
|25 | 98 + 87 | 185 |
|26 | 41 - 16 | 25 |
|27 | 53 - 11 | 42 |
|28 | 95 - 71 | 24 |
|29 | 44 - 13 | 31 |
|30 | 33 - 19 | 14 |

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