Subtraction with Regrouping: 1,049 − 402
Subtraction with Regrouping Calculator
What is 1,049 − 402?
Answer
1,049 − 402 =
647
With regrouping: 1 borrow — from the thousands
| 0 | +10 | |||
| 0 (was 0, now 10) | 4 | 9 | ||
| − | 4 | 0 | 2 | |
| 6 | 4 | 7 |
Column by column: 1,049 − 402
- Ones: 9 − 2 = 7 — write 7.
- Tens: 4 − 0 = 4 — write 4.
- Hundreds: 0 is less than 4 — borrow 1 thousand: thousands 1 → 0; 10 − 4 = 6 — write 6.
- Thousands: after borrowing, 0 — a leading zero is not written.
1,049 − 402 = 647
Second check: 1,049 − 647 = 402
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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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