Of course! I'll solve each of the 25 double-digit subtraction problems for you and explain the process.
The general method for subtracting two double-digit numbers is to subtract the digits in the
ones place first, then subtract the digits in the
tens place. If the top digit in the ones place is smaller than the bottom digit, you need to
borrow from the tens place.
Let's go through each problem:
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Problem 1: 87 - 35
- Ones: 7 - 5 = 2
- Tens: 8 - 3 = 5
- Answer:
52
Problem 2: 78 - 33
- Ones: 8 - 3 = 5
- Tens: 7 - 3 = 4
- Answer:
45
Problem 3: 52 - 28
- Ones: 2 is less than 8, so borrow 1 from the tens (5 becomes 4, 2 becomes 12)
- Ones: 12 - 8 = 4
- Tens: 4 - 2 = 2
- Answer:
24
Problem 4: 87 - 81
- Ones: 7 - 1 = 6
- Tens: 8 - 8 = 0
- Answer:
6
Problem 5: 46 - 22
- Ones: 6 - 2 = 4
- Tens: 4 - 2 = 2
- Answer:
24
---
Problem 6: 14 - 12
- Ones: 4 - 2 = 2
- Tens: 1 - 1 = 0
- Answer:
2
Problem 7: 77 - 66
- Ones: 7 - 6 = 1
- Tens: 7 - 6 = 1
- Answer:
11
Problem 8: 48 - 21
- Ones: 8 - 1 = 7
- Tens: 4 - 2 = 2
- Answer:
27
Problem 9: 88 - 55
- Ones: 8 - 5 = 3
- Tens: 8 - 5 = 3
- Answer:
33
Problem 10: 87 - 65
- Ones: 7 - 5 = 2
- Tens: 8 - 6 = 2
- Answer:
22
---
Problem 11: 99 - 79
- Ones: 9 - 9 = 0
- Tens: 9 - 7 = 2
- Answer:
20
Problem 12: 84 - 24
- Ones: 4 - 4 = 0
- Tens: 8 - 2 = 6
- Answer:
60
Problem 13: 87 - 87
- Ones: 7 - 7 = 0
- Tens: 8 - 8 = 0
- Answer:
0
Problem 14: 64 - 41
- Ones: 4 - 1 = 3
- Tens: 6 - 4 = 2
- Answer:
23
Problem 15: 38 - 11
- Ones: 8 - 1 = 7
- Tens: 3 - 1 = 2
- Answer:
27
---
Problem 16: 52 - 47
- Ones: 2 < 7, so borrow 1 from tens (5 becomes 4, 2 becomes 12)
- Ones: 12 - 7 = 5
- Tens: 4 - 4 = 0
- Answer:
5
Problem 17: 94 - 74
- Ones: 4 - 4 = 0
- Tens: 9 - 7 = 2
- Answer:
20
Problem 18: 52 - 36
- Ones: 2 < 6, so borrow 1 from tens (5 becomes 4, 2 becomes 12)
- Ones: 12 - 6 = 6
- Tens: 4 - 3 = 1
- Answer:
16
Problem 19: 75 - 31
- Ones: 5 - 1 = 4
- Tens: 7 - 3 = 4
- Answer:
44
Problem 20: 82 - 29
- Ones: 2 < 9, so borrow 1 from tens (8 becomes 7, 2 becomes 12)
- Ones: 12 - 9 = 3
- Tens: 7 - 2 = 5
- Answer:
53
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Problem 21: 57 - 32
- Ones: 7 - 2 = 5
- Tens: 5 - 3 = 2
- Answer:
25
Problem 22: 48 - 29
- Ones: 8 < 9, so borrow 1 from tens (4 becomes 3, 8 becomes 18)
- Ones: 18 - 9 = 9
- Tens: 3 - 2 = 1
- Answer:
19
Problem 23: 85 - 79
- Ones: 5 < 9, so borrow 1 from tens (8 becomes 7, 5 becomes 15)
- Ones: 15 - 9 = 6
- Tens: 7 - 7 = 0
- Answer:
6
Problem 24: 92 - 18
- Ones: 2 < 8, so borrow 1 from tens (9 becomes 8, 2 becomes 12)
- Ones: 12 - 8 = 4
- Tens: 8 - 1 = 7
- Answer:
74
Problem 25: 76 - 48
- Ones: 6 < 8, so borrow 1 from tens (7 becomes 6, 6 becomes 16)
- Ones: 16 - 8 = 8
- Tens: 6 - 4 = 2
- Answer:
28
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✔ Final Answers:
1. 52
2. 45
3. 24
4. 6
5. 24
6. 2
7. 11
8. 27
9. 33
10. 22
11. 20
12. 60
13. 0
14. 23
15. 27
16. 5
17. 20
18. 16
19. 44
20. 53
21. 25
22. 19
23. 6
24. 74
25. 28
Let me know if you’d like a printable version or more practice problems!
Parent Tip: Review the logic above to help your child master the concept of two digit subtraction worksheet with.
