Subtraction with Regrouping: 217 − 45
Subtraction with Regrouping Calculator
What is 217 − 45?
Answer
217 − 45 =
172
With regrouping: 1 borrow — from the hundreds
| 1 | +10 | ||
| 1 (was 1, now 11) | 7 | ||
| − | 4 | 5 | |
| 1 | 7 | 2 |
Column by column: 217 − 45
- Ones: 7 − 5 = 2 — write 2.
- Tens: 1 is less than 4 — borrow 1 hundred: hundreds 2 → 1; 11 − 4 = 7 — write 7.
- Hundreds: after borrowing, 1; nothing to subtract — write 1.
217 − 45 = 172
Second check: 217 − 172 = 45
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- Addition with Regrouping Calculator - Column addition step by step, with every carry
- Long Division Calculator - Step-by-step long division with detailed explanation
- Long Multiplication Calculator - Column multiplication with partial products, step by step
- Subtracting Fractions Calculator - Subtract fractions, mixed numbers and whole numbers step by step
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