Column Addition: 402 + 45
Addition with Regrouping Calculator
What is 402 + 45?
Answer
402 + 45 =
447
No regrouping: each column is added on its own
| 4 | 0 | 2 | |
| + | 4 | 5 | |
| 4 | 4 | 7 |
Column by column: 402 + 45
- Ones: 2 + 5 = 7 — write 7.
- Tens: 0 + 4 = 4 — write 4.
- Hundreds: nothing to add — write 4.
402 + 45 = 447
Second check: 447 − 402 = 45
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- Adding Fractions Calculator - Add fractions, mixed numbers and whole numbers step by step
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