Column Addition: 402 + 71
Addition with Regrouping Calculator
What is 402 + 71?
Answer
402 + 71 =
473
No regrouping: each column is added on its own
| 4 | 0 | 2 | |
| + | 7 | 1 | |
| 4 | 7 | 3 |
Column by column: 402 + 71
- Ones: 2 + 1 = 3 — write 3.
- Tens: 0 + 7 = 7 — write 7.
- Hundreds: nothing to add — write 4.
402 + 71 = 473
Second check: 473 − 402 = 71
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