Column Addition: 453 + 15
Addition with Regrouping Calculator
What is 453 + 15?
Answer
453 + 15 =
468
No regrouping: each column is added on its own
| 4 | 5 | 3 | |
| + | 1 | 5 | |
| 4 | 6 | 8 |
Column by column: 453 + 15
- Ones: 3 + 5 = 8 — write 8.
- Tens: 5 + 1 = 6 — write 6.
- Hundreds: nothing to add — write 4.
453 + 15 = 468
Second check: 468 − 453 = 15
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