Subtraction with Regrouping: 842 − 389
Subtraction with Regrouping Calculator
What is 842 − 389?
Answer
842 − 389 =
453
With regrouping: 2 borrows — from the tens and the hundreds
| 7 | 13 | +10 | |
| 2 (was 2, now 12) | |||
| − | 3 | 8 | 9 |
| 4 | 5 | 3 |
Column by column: 842 − 389
- Ones: 2 is less than 9 — borrow 1 ten: tens 4 → 3; 12 − 9 = 3 — write 3.
- Tens: after borrowing, 3; 3 is less than 8 — borrow 1 hundred: hundreds 8 → 7; 13 − 8 = 5 — write 5.
- Hundreds: after borrowing, 7; 7 − 3 = 4 — write 4.
842 − 389 = 453
Second check: 842 − 453 = 389
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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 389
| Example | Difference |
|---|---|
| 837 − 389 | 448 |
| 838 − 389 | 449 |
| 839 − 389 | 450 |
| 840 − 389 | 451 |
| 841 − 389 | 452 |
| 842 − 389 | 453 |
| 843 − 389 | 454 |
| 844 − 389 | 455 |
| 845 − 389 | 456 |
| 846 − 389 | 457 |
| 847 − 389 | 458 |