Subtraction with Regrouping: 428 − 172
Subtraction with Regrouping Calculator
What is 428 − 172?
Answer
428 − 172 =
256
With regrouping: 1 borrow — from the hundreds
| 3 | +10 | ||
| 2 (was 2, now 12) | 8 | ||
| − | 1 | 7 | 2 |
| 2 | 5 | 6 |
Column by column: 428 − 172
- Ones: 8 − 2 = 6 — write 6.
- Tens: 2 is less than 7 — borrow 1 hundred: hundreds 4 → 3; 12 − 7 = 5 — write 5.
- Hundreds: after borrowing, 3; 3 − 1 = 2 — write 2.
428 − 172 = 256
Second check: 428 − 256 = 172
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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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