Subtraction with Regrouping: 991 − 427
Subtraction with Regrouping Calculator
What is 991 − 427?
Answer
991 − 427 =
564
With regrouping: 1 borrow — from the tens
| 8 | +10 | ||
| 9 | 1 (was 1, now 11) | ||
| − | 4 | 2 | 7 |
| 5 | 6 | 4 |
Column by column: 991 − 427
- Ones: 1 is less than 7 — borrow 1 ten: tens 9 → 8; 11 − 7 = 4 — write 4.
- Tens: after borrowing, 8; 8 − 2 = 6 — write 6.
- Hundreds: 9 − 4 = 5 — write 5.
991 − 427 = 564
Second check: 991 − 564 = 427
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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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Column subtractions of 427
| Example | Difference |
|---|---|
| 986 − 427 | 559 |
| 987 − 427 | 560 |
| 988 − 427 | 561 |
| 989 − 427 | 562 |
| 990 − 427 | 563 |
| 991 − 427 | 564 |
| 992 − 427 | 565 |
| 993 − 427 | 566 |
| 994 − 427 | 567 |
| 995 − 427 | 568 |
| 996 − 427 | 569 |