Column Addition: 172 + 17
Addition with Regrouping Calculator
What is 172 + 17?
Answer
172 + 17 =
189
No regrouping: each column is added on its own
| 1 | 7 | 2 | |
| + | 1 | 7 | |
| 1 | 8 | 9 |
Column by column: 172 + 17
- Ones: 2 + 7 = 9 — write 9.
- Tens: 7 + 1 = 8 — write 8.
- Hundreds: nothing to add — write 1.
172 + 17 = 189
Second check: 189 − 172 = 17
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- Adding Fractions Calculator - Add fractions, mixed numbers and whole numbers step by step
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