3 Digit Addition With Regrouping - Carrying - 6 Worksheets / FREE ... - Free Printable

Let’s solve each addition problem step by step.

We’ll go row by row, left to right.

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First Row:

1. 996 + 978

- Ones: 6 + 8 = 14 → write down 4, carry over 1
- Tens: 9 + 7 = 16, plus 1 carried = 17 → write down 7, carry over 1
- Hundreds: 9 + 9 = 18, plus 1 carried = 19 → write down 19

→ 1974

2. 896 + 968

- Ones: 6 + 8 = 14 → write 4, carry 1
- Tens: 9 + 6 = 15, plus 1 = 16 → write 6, carry 1
- Hundreds: 8 + 9 = 17, plus 1 = 18 → write 18

→ 1864

3. 795 + 998

- Ones: 5 + 8 = 13 → write 3, carry 1
- Tens: 9 + 9 = 18, plus 1 = 19 → write 9, carry 1
- Hundreds: 7 + 9 = 16, plus 1 = 17 → write 17

→ 1793

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Second Row:

4. 598 + 958

- Ones: 8 + 8 = 16 → write 6, carry 1
- Tens: 9 + 5 = 14, plus 1 = 15 → write 5, carry 1
- Hundreds: 5 + 9 = 14, plus 1 = 15 → write 15

→ 1556

5. 597 + 938

- Ones: 7 + 8 = 15 → write 5, carry 1
- Tens: 9 + 3 = 12, plus 1 = 13 → write 3, carry 1
- Hundreds: 5 + 9 = 14, plus 1 = 15 → write 15

→ 1535

6. 596 + 928

- Ones: 6 + 8 = 14 → write 4, carry 1
- Tens: 9 + 2 = 11, plus 1 = 12 → write 2, carry 1
- Hundreds: 5 + 9 = 14, plus 1 = 15 → write 15

→ 1524

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Third Row:

7. 595 + 968

- Ones: 5 + 8 = 13 → write 3, carry 1
- Tens: 9 + 6 = 15, plus 1 = 16 → write 6, carry 1
- Hundreds: 5 + 9 = 14, plus 1 = 15 → write 15

→ 1563

8. 594 + 978

- Ones: 4 + 8 = 12 → write 2, carry 1
- Tens: 9 + 7 = 16, plus 1 = 17 → write 7, carry 1
- Hundreds: 5 + 9 = 14, plus 1 = 15 → write 15

→ 1572

9. 593 + 998

- Ones: 3 + 8 = 11 → write 1, carry 1
- Tens: 9 + 9 = 18, plus 1 = 19 → write 9, carry 1
- Hundreds: 5 + 9 = 14, plus 1 = 15 → write 15

→ 1591

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Fourth Row:

10. 599 + 978

- Ones: 9 + 8 = 17 → write 7, carry 1
- Tens: 9 + 7 = 16, plus 1 = 17 → write 7, carry 1
- Hundreds: 5 + 9 = 14, plus 1 = 15 → write 15

→ 1577

11. 678 + 543

- Ones: 8 + 3 = 11 → write 1, carry 1
- Tens: 7 + 4 = 11, plus 1 = 12 → write 2, carry 1
- Hundreds: 6 + 5 = 11, plus 1 = 12 → write 12

→ 1221

12. 876 + 555

- Ones: 6 + 5 = 11 → write 1, carry 1
- Tens: 7 + 5 = 12, plus 1 = 13 → write 3, carry 1
- Hundreds: 8 + 5 = 13, plus 1 = 14 → write 14

→ 1431

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Final Answer:
1974, 1864, 1793, 1556, 1535, 1524, 1563, 1572, 1591, 1577, 1221, 1431