Subtraction with Regrouping: 810 − 291
Subtraction with Regrouping Calculator
What is 810 − 291?
Answer
810 − 291 =
519
With regrouping: 2 borrows — from the tens and the hundreds
| 7 | 10 | +10 | |
| 0 (was 0, now 10) | |||
| − | 2 | 9 | 1 |
| 5 | 1 | 9 |
Column by column: 810 − 291
- Ones: 0 is less than 1 — borrow 1 ten: tens 1 → 0; 10 − 1 = 9 — write 9.
- Tens: after borrowing, 0; 0 is less than 9 — borrow 1 hundred: hundreds 8 → 7; 10 − 9 = 1 — write 1.
- Hundreds: after borrowing, 7; 7 − 2 = 5 — write 5.
810 − 291 = 519
Second check: 810 − 519 = 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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