Let’s solve each subtraction problem step by step. We’ll go one at a time, making sure we subtract correctly — starting from the right (ones place) and moving left.
---
1. 77 - 33
- Ones: 7 - 3 = 4
- Tens: 7 - 3 = 4
→
44
---
2. 87 - 54
- Ones: 7 - 4 = 3
- Tens: 8 - 5 = 3
→
33
---
3. 46 - 23
- Ones: 6 - 3 = 3
- Tens: 4 - 2 = 2
→
23
---
4. 95 - 72
- Ones: 5 - 2 = 3
- Tens: 9 - 7 = 2
→
23
---
5. 72 - 55
This one needs borrowing!
- Ones: 2 is less than 5 → borrow 1 from tens.
- 72 becomes 6 tens and 12 ones.
- 12 - 5 = 7
- Tens: 6 - 5 = 1
→
17
---
6. 93 - 68
Borrow again!
- Ones: 3 < 8 → borrow 1 from tens.
- 93 becomes 8 tens and 13 ones.
- 13 - 8 = 5
- Tens: 8 - 6 = 2
→
25
---
7. 45 - 29
Borrow!
- Ones: 5 < 9 → borrow 1 from tens.
- 45 becomes 3 tens and 15 ones.
- 15 - 9 = 6
- Tens: 3 - 2 = 1
→
16
---
8. 82 - 45
Borrow!
- Ones: 2 < 5 → borrow 1 from tens.
- 82 becomes 7 tens and 12 ones.
- 12 - 5 = 7
- Tens: 7 - 4 = 3
→
37
---
9. 337 - 225
No borrowing needed here.
- Ones: 7 - 5 = 2
- Tens: 3 - 2 = 1
- Hundreds: 3 - 2 = 1
→
112
---
10. 685 - 347
Check each column:
- Ones: 5 < 7 → borrow from tens.
- 8 tens become 7, 5 ones become 15.
- 15 - 7 = 8
- Tens: 7 - 4 = 3
- Hundreds: 6 - 3 = 3
→
338
Wait — let me double-check that.
Actually:
After borrowing for ones:
- Ones: 15 - 7 = 8
✔
- Tens: 7 (after lending) - 4 = 3
✔
- Hundreds: 6 - 3 = 3
✔
Yes,
338
---
11. 552 - 342
Easy no-borrowing:
- Ones: 2 - 2 = 0
- Tens: 5 - 4 = 1
- Hundreds: 5 - 3 = 2
→
210
---
12. 472 - 353
Ones: 2 < 3 → borrow from tens.
- Tens digit is 7 → becomes 6, ones become 12.
- 12 - 3 = 9
- Tens: 6 - 5 = 1
- Hundreds: 4 - 3 = 1
→
119
Double-check:
472
-353
____
Start from right:
2 - 3 → can’t do → borrow → 12 - 3 = 9
Tens: 6 (after borrow) - 5 = 1
Hundreds: 4 - 3 = 1
→ Yes,
119
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Final Answer:
1. 44
2. 33
3. 23
4. 23
5. 17
6. 25
7. 16
8. 37
9. 112
10. 338
11. 210
12. 119
Parent Tip: Review the logic above to help your child master the concept of worksheet for subtraction.
