Let's solve each of these
2-digit subtraction problems with regrouping step by step. Regrouping (also known as borrowing) is needed when the bottom digit in a column is larger than the top digit.
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1. 76 - 38
- Ones place: 6 - 8 → can't do, so borrow 1 from tens.
- 7 becomes 6, and 6 becomes 16.
- 16 - 8 = 8
- Tens: 6 - 3 = 3
✔ Answer: 38
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2. 63 - 27
- Ones: 3 - 7 → borrow 1 from tens.
- 6 becomes 5, 3 becomes 13.
- 13 - 7 = 6
- Tens: 5 - 2 = 3
✔ Answer: 36
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3. 58 - 29
- Ones: 8 - 9 → borrow 1 from tens.
- 5 becomes 4, 8 becomes 18.
- 18 - 9 = 9
- Tens: 4 - 2 = 2
✔ Answer: 29
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4. 68 - 39
- Ones: 8 - 9 → borrow 1.
- 6 becomes 5, 8 becomes 18.
- 18 - 9 = 9
- Tens: 5 - 3 = 2
✔ Answer: 29
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5. 44 - 35
- Ones: 4 - 5 → borrow 1.
- 4 becomes 3, 4 becomes 14.
- 14 - 5 = 9
- Tens: 3 - 3 = 0
✔ Answer: 9
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6. 80 - 47
- Ones: 0 - 7 → need to borrow.
- Borrow 1 from tens (8 → 7), but 0 becomes 10.
- 10 - 7 = 3
- Tens: 7 - 4 = 3
✔ Answer: 33
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7. 83 - 57
- Ones: 3 - 7 → borrow 1.
- 8 becomes 7, 3 becomes 13.
- 13 - 7 = 6
- Tens: 7 - 5 = 2
✔ Answer: 26
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8. 65 - 37
- Ones: 5 - 7 → borrow 1.
- 6 becomes 5, 5 becomes 15.
- 15 - 7 = 8
- Tens: 5 - 3 = 2
✔ Answer: 28
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9. 58 - 49
- Ones: 8 - 9 → borrow 1.
- 5 becomes 4, 8 becomes 18.
- 18 - 9 = 9
- Tens: 4 - 4 = 0
✔ Answer: 9
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10. 45 - 38
- Ones: 5 - 8 → borrow 1.
- 4 becomes 3, 5 becomes 15.
- 15 - 8 = 7
- Tens: 3 - 3 = 0
✔ Answer: 7
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11. 30 - 18
- Ones: 0 - 8 → borrow 1.
- 3 becomes 2, 0 becomes 10.
- 10 - 8 = 2
- Tens: 2 - 1 = 1
✔ Answer: 12
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12. 91 - 35
- Ones: 1 - 5 → borrow 1.
- 9 becomes 8, 1 becomes 11.
- 11 - 5 = 6
- Tens: 8 - 3 = 5
✔ Answer: 56
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✔ Final Answers:
| Problem | Answer |
|--------|--------|
| 76 - 38 |
38 |
| 63 - 27 |
36 |
| 58 - 29 |
29 |
| 68 - 39 |
29 |
| 44 - 35 |
9 |
| 80 - 47 |
33 |
| 83 - 57 |
26 |
| 65 - 37 |
28 |
| 58 - 49 |
9 |
| 45 - 38 |
7 |
| 30 - 18 |
12 |
| 91 - 35 |
56 |
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Parent Tip: Review the logic above to help your child master the concept of subtraction with regrouping worksheets pdf.
