Let’s solve each subtraction problem step by step. We’re doing double-digit subtraction with regrouping — that means sometimes we need to borrow from the tens place when the top digit in the ones place is smaller than the bottom one.
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Problem 1: 80 – 24
- Ones place: 0 – 4 → can’t do, so borrow 1 from tens (8 becomes 7), and 0 becomes 10.
- Now: 10 – 4 = 6
- Tens place: 7 – 2 = 5
→
Answer: 56
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Problem 2: 72 – 15
- Ones: 2 – 5 → can’t do, borrow from tens (7 becomes 6), 2 becomes 12
- 12 – 5 = 7
- Tens: 6 – 1 = 5
→
Answer: 57
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Problem 3: 60 – 58
- Ones: 0 – 8 → borrow from tens (6 becomes 5), 0 becomes 10
- 10 – 8 = 2
- Tens: 5 – 5 = 0
→
Answer: 2
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Problem 4: 75 – 46
- Ones: 5 – 6 → borrow from tens (7 becomes 6), 5 becomes 15
- 15 – 6 = 9
- Tens: 6 – 4 = 2
→
Answer: 29
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Problem 5: 98 – 79
- Ones: 8 – 9 → borrow from tens (9 becomes 8), 8 becomes 18
- 18 – 9 = 9
- Tens: 8 – 7 = 1
→
Answer: 19
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Problem 6: 96 – 77
- Ones: 6 – 7 → borrow from tens (9 becomes 8), 6 becomes 16
- 16 – 7 = 9
- Tens: 8 – 7 = 1
→
Answer: 19
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Problem 7: 98 – 69
- Ones: 8 – 9 → borrow from tens (9 becomes 8), 8 becomes 18
- 18 – 9 = 9
- Tens: 8 – 6 = 2
→
Answer: 29
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Problem 8: 53 – 49
- Ones: 3 – 9 → borrow from tens (5 becomes 4), 3 becomes 13
- 13 – 9 = 4
- Tens: 4 – 4 = 0
→
Answer: 4
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Problem 9: 92 – 36
- Ones: 2 – 6 → borrow from tens (9 becomes 8), 2 becomes 12
- 12 – 6 = 6
- Tens: 8 – 3 = 5
→
Answer: 56
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Problem 10: 92 – 87
- Ones: 2 – 7 → borrow from tens (9 becomes 8), 2 becomes 12
- 12 – 7 = 5
- Tens: 8 – 8 = 0
→
Answer: 5
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Problem 11: 97 – 68
- Ones: 7 – 8 → borrow from tens (9 becomes 8), 7 becomes 17
- 17 – 8 = 9
- Tens: 8 – 6 = 2
→
Answer: 29
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Problem 12: 91 – 16
- Ones: 1 – 6 → borrow from tens (9 becomes 8), 1 becomes 11
- 11 – 6 = 5
- Tens: 8 – 1 = 7
→
Answer: 75
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Problem 13: 54 – 46
- Ones: 4 – 6 → borrow from tens (5 becomes 4), 4 becomes 14
- 14 – 6 = 8
- Tens: 4 – 4 = 0
→
Answer: 8
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Problem 14: 80 – 61
- Ones: 0 – 1 → borrow from tens (8 becomes 7), 0 becomes 10
- 10 – 1 = 9
- Tens: 7 – 6 = 1
→
Answer: 19
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Problem 15: 31 – 18
- Ones: 1 – 8 → borrow from tens (3 becomes 2), 1 becomes 11
- 11 – 8 = 3
- Tens: 2 – 1 = 1
→
Answer: 13
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Final Answer:
56, 57, 2, 29, 19, 19, 29, 4, 56, 5, 29, 75, 8, 19, 13
Parent Tip: Review the logic above to help your child master the concept of two digit subtraction worksheet with.