Triple Digit Subtraction Regrouping Worksheet - Free Printable

Let's solve each of the three-digit subtraction problems with regrouping, then determine whether the result is odd or even, so we can follow the coloring instructions:

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🔢 Step-by-step Solutions

We'll go through each problem one by one.

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1. 885 - 457
- 5 - 7 → can't do, borrow: 15 - 7 = 8
- 7 (after borrowing) - 5 = 2
- 8 - 4 = 4
→ 428 → Even → ✔ White

2. 482 - 144
- 2 - 4 → borrow: 12 - 4 = 8
- 7 (after borrowing) - 4 = 3
- 4 - 1 = 3
→ 338 → Even → ✔ White

3. 635 - 417
- 5 - 7 → borrow: 15 - 7 = 8
- 2 (after borrowing) - 1 = 1
- 6 - 4 = 2
→ 218 → Even → ✔ White

4. 361 - 109
- 1 - 9 → borrow: 11 - 9 = 2
- 5 (after borrowing) - 0 = 5
- 3 - 1 = 2
→ 252 → Even → ✔ White

5. 438 - 229
- 8 - 9 → borrow: 18 - 9 = 9
- 2 (after borrowing) - 2 = 0
- 4 - 2 = 2
→ 209 → Odd → ✔ Purple

6. 473 - 268
- 3 - 8 → borrow: 13 - 8 = 5
- 6 (after borrowing) - 6 = 0
- 4 - 2 = 2
→ 205 → Odd → ✔ Purple

7. 635 - 537
- 5 - 7 → borrow: 15 - 7 = 8
- 2 (after borrowing) - 3 → need to borrow again: 12 - 3 = 9
- 5 (after borrowing) - 5 = 0
→ 98 → Even → ✔ White

8. 214 - 105
- 4 - 5 → borrow: 14 - 5 = 9
- 0 (after borrowing) - 0 = 0
- 1 - 1 = 0
→ 109 → Odd → ✔ Purple

9. 248 - 139
- 8 - 9 → borrow: 18 - 9 = 9
- 3 (after borrowing) - 3 = 0
- 2 - 1 = 1
→ 109 → Odd → ✔ Purple

10. 357 - 239
- 7 - 9 → borrow: 17 - 9 = 8
- 4 (after borrowing) - 3 = 1
- 3 - 2 = 1
→ 118 → Even → ✔ White

11. 926 - 819
- 6 - 9 → borrow: 16 - 9 = 7
- 1 (after borrowing) - 1 = 0
- 8 (after borrowing) - 8 = 0
→ 107 → Odd → ✔ Purple

12. 882 - 735
- 2 - 5 → borrow: 12 - 5 = 7
- 7 (after borrowing) - 3 = 4
- 8 - 7 = 1
→ 147 → Odd → ✔ Purple

13. 413 - 206
- 3 - 6 → borrow: 13 - 6 = 7
- 0 (after borrowing) - 0 = 0
- 3 (after borrowing) - 2 = 1
→ 207 → Odd → ✔ Purple

14. 125 - 117
- 5 - 7 → borrow: 15 - 7 = 8
- 1 (after borrowing) - 1 = 0
- 0 (after borrowing) - 1 → need to borrow from hundreds: 10 - 1 = 9
→ 8 → Even → ✔ White

15. 514 - 207
- 4 - 7 → borrow: 14 - 7 = 7
- 0 (after borrowing) - 0 = 0
- 5 - 2 = 3
→ 307 → Odd → ✔ Purple

16. 520 - 315
- 0 - 5 → borrow: 10 - 5 = 5
- 1 (after borrowing) - 1 = 0
- 5 - 3 = 2
→ 205 → Odd → ✔ Purple

17. 553 - 218
- 3 - 8 → borrow: 13 - 8 = 5
- 4 (after borrowing) - 1 = 3
- 5 - 2 = 3
→ 335 → Odd → ✔ Purple

18. 258 - 129
- 8 - 9 → borrow: 18 - 9 = 9
- 4 (after borrowing) - 2 = 2
- 2 - 1 = 1
→ 129 → Odd → ✔ Purple

19. 663 - 446
- 3 - 6 → borrow: 13 - 6 = 7
- 5 (after borrowing) - 4 = 1
- 6 - 4 = 2
→ 217 → Odd → ✔ Purple

20. 257 - 139
- 7 - 9 → borrow: 17 - 9 = 8
- 4 (after borrowing) - 3 = 1
- 2 - 1 = 1
→ 118 → Even → ✔ White

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✔ Final Answers and Coloring

| Problem | Answer | Odd/Even | Color |
|--------|--------|----------|-------|
| 1 | 428 | Even | White |
| 2 | 338 | Even | White |
| 3 | 218 | Even | White |
| 4 | 252 | Even | White |
| 5 | 209 | Odd | Purple |
| 6 | 205 | Odd | Purple |
| 7 | 98 | Even | White |
| 8 | 109 | Odd | Purple |
| 9 | 109 | Odd | Purple |
| 10 | 118 | Even | White |
| 11 | 107 | Odd | Purple |
| 12 | 147 | Odd | Purple |
| 13 | 207 | Odd | Purple |
| 14 | 8 | Even | White |
| 15 | 307 | Odd | Purple |
| 16 | 205 | Odd | Purple |
| 17 | 335 | Odd | Purple |
| 18 | 129 | Odd | Purple |
| 19 | 217 | Odd | Purple |
| 20 | 118 | Even | White |

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🎨 Coloring Instructions:

- Color squares with odd answers (Purple):
Problems: 5, 6, 8, 9, 11, 12, 13, 15, 16, 17, 18, 19
- Color squares with even answers (White):
Problems: 1, 2, 3, 4, 7, 10, 14, 20

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✔ Final Answer Summary:

You should color purple:
5, 6, 8, 9, 11, 12, 13, 15, 16, 17, 18, 19

And leave white (or color white):
1, 2, 3, 4, 7, 10, 14, 20

Let me know if you'd like this formatted as a printable answer key!