Subtraction with Regrouping: 649 − 71
Subtraction with Regrouping Calculator
What is 649 − 71?
Answer
649 − 71 =
578
With regrouping: 1 borrow — from the hundreds
| 5 | +10 | ||
| 4 (was 4, now 14) | 9 | ||
| − | 7 | 1 | |
| 5 | 7 | 8 |
Column by column: 649 − 71
- Ones: 9 − 1 = 8 — write 8.
- Tens: 4 is less than 7 — borrow 1 hundred: hundreds 6 → 5; 14 − 7 = 7 — write 7.
- Hundreds: after borrowing, 5; nothing to subtract — write 5.
649 − 71 = 578
Second check: 649 − 578 = 71
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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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