Subtraction with Regrouping: 680 − 291
Subtraction with Regrouping Calculator
What is 680 − 291?
Answer
680 − 291 =
389
With regrouping: 2 borrows — from the tens and the hundreds
| 5 | 17 | +10 | |
| 0 (was 0, now 10) | |||
| − | 2 | 9 | 1 |
| 3 | 8 | 9 |
Column by column: 680 − 291
- Ones: 0 is less than 1 — borrow 1 ten: tens 8 → 7; 10 − 1 = 9 — write 9.
- Tens: after borrowing, 7; 7 is less than 9 — borrow 1 hundred: hundreds 6 → 5; 17 − 9 = 8 — write 8.
- Hundreds: after borrowing, 5; 5 − 2 = 3 — write 3.
680 − 291 = 389
Second check: 680 − 389 = 291
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See Also
- 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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