Double Digit Addition Regroup Worksheet - Free Printable

Let's solve each of the two-digit addition problems on this worksheet, with regrouping where needed. Then we'll determine whether each sum is odd or even, so you can color the squares accordingly.

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🔢 Step-by-Step Solutions:

We’ll go through each problem and add the numbers, showing regrouping when necessary.

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1. 54 + 47
- 4 + 7 = 11 → write down 1, carry over 1
- 5 + 4 + 1 (carry) = 10
→ 101 → Odd → ✔ Pink

2. 39 + 27
- 9 + 7 = 16 → write 6, carry 1
- 3 + 2 + 1 = 6
→ 66 → Even → ✔ Green

3. 73 + 18
- 3 + 8 = 11 → write 1, carry 1
- 7 + 1 + 1 = 9
→ 91 → Odd → ✔ Pink

4. 69 + 26
- 9 + 6 = 15 → write 5, carry 1
- 6 + 2 + 1 = 9
→ 95 → Odd → ✔ Pink

5. 49 + 26
- 9 + 6 = 15 → write 5, carry 1
- 4 + 2 + 1 = 7
→ 75 → Odd → ✔ Pink

6. 56 + 28
- 6 + 8 = 14 → write 4, carry 1
- 5 + 2 + 1 = 8
→ 84 → Even → ✔ Green

7. 37 + 38
- 7 + 8 = 15 → write 5, carry 1
- 3 + 3 + 1 = 7
→ 75 → Odd → ✔ Pink

8. 78 + 17
- 8 + 7 = 15 → write 5, carry 1
- 7 + 1 + 1 = 9
→ 95 → Odd → ✔ Pink

9. 58 + 37
- 8 + 7 = 15 → write 5, carry 1
- 5 + 3 + 1 = 9
→ 95 → Odd → ✔ Pink

10. 66 + 17
- 6 + 7 = 13 → write 3, carry 1
- 6 + 1 + 1 = 8
→ 83 → Odd → ✔ Pink

11. 54 + 26
- 4 + 6 = 10 → write 0, carry 1
- 5 + 2 + 1 = 8
→ 80 → Even → ✔ Green

12. 61 + 19
- 1 + 9 = 10 → write 0, carry 1
- 6 + 1 + 1 = 8
→ 80 → Even → ✔ Green

13. 27 + 37
- 7 + 7 = 14 → write 4, carry 1
- 2 + 3 + 1 = 6
→ 64 → Even → ✔ Green

14. 69 + 16
- 9 + 6 = 15 → write 5, carry 1
- 6 + 1 + 1 = 8
→ 85 → Odd → ✔ Pink

15. 54 + 36
- 4 + 6 = 10 → write 0, carry 1
- 5 + 3 + 1 = 9
→ 90 → Even → ✔ Green

16. 38 + 17
- 8 + 7 = 15 → write 5, carry 1
- 3 + 1 + 1 = 5
→ 55 → Odd → ✔ Pink

17. 38 + 26
- 8 + 6 = 14 → write 4, carry 1
- 3 + 2 + 1 = 6
→ 64 → Even → ✔ Green

18. 28 + 38
- 8 + 8 = 16 → write 6, carry 1
- 2 + 3 + 1 = 6
→ 66 → Even → ✔ Green

19. 58 + 27
- 8 + 7 = 15 → write 5, carry 1
- 5 + 2 + 1 = 8
→ 85 → Odd → ✔ Pink

20. 37 + 29
- 7 + 9 = 16 → write 6, carry 1
- 3 + 2 + 1 = 6
→ 66 → Even → ✔ Green

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✔ Final Answers & Coloring Guide:

| Problem | Sum | Odd/Even | Color |
|--------|-----|----------|-------|
| 1 | 101 | Odd | Pink |
| 2 | 66 | Even | Green |
| 3 | 91 | Odd | Pink |
| 4 | 95 | Odd | Pink |
| 5 | 75 | Odd | Pink |
| 6 | 84 | Even | Green |
| 7 | 75 | Odd | Pink |
| 8 | 95 | Odd | Pink |
| 9 | 95 | Odd | Pink |
|10 | 83 | Odd | Pink |
|11 | 80 | Even | Green |
|12 | 80 | Even | Green |
|13 | 64 | Even | Green |
|14 | 85 | Odd | Pink |
|15 | 90 | Even | Green |
|16 | 55 | Odd | Pink |
|17 | 64 | Even | Green |
|18 | 66 | Even | Green |
|19 | 85 | Odd | Pink |
|20 | 66 | Even | Green |

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🎨 Coloring Instructions:

- Pink: Problems with odd sums → #1, 3, 4, 5, 7, 8, 9, 10, 14, 16, 19
- Green: Problems with even sums → #2, 6, 11, 12, 13, 15, 17, 18, 20

> 💡 Tip: You can use a pencil to mark the answers first, then color them based on odd/even.

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✔ All problems solved!
Now just color the squares as directed — pink for odd, green for even. This helps reinforce number sense and pattern recognition!

Let me know if you'd like a printable version or a visual chart!