Subtraction with Regrouping: 816 − 389
Subtraction with Regrouping Calculator
What is 816 − 389?
Answer
816 − 389 =
427
With regrouping: 2 borrows — from the tens and the hundreds
| 7 | 10 | +10 | |
| 6 (was 6, now 16) | |||
| − | 3 | 8 | 9 |
| 4 | 2 | 7 |
Column by column: 816 − 389
- Ones: 6 is less than 9 — borrow 1 ten: tens 1 → 0; 16 − 9 = 7 — write 7.
- Tens: after borrowing, 0; 0 is less than 8 — borrow 1 hundred: hundreds 8 → 7; 10 − 8 = 2 — write 2.
- Hundreds: after borrowing, 7; 7 − 3 = 4 — write 4.
816 − 389 = 427
Second check: 816 − 427 = 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 |
|---|---|
| 811 − 389 | 422 |
| 812 − 389 | 423 |
| 813 − 389 | 424 |
| 814 − 389 | 425 |
| 815 − 389 | 426 |
| 816 − 389 | 427 |
| 817 − 389 | 428 |
| 818 − 389 | 429 |
| 819 − 389 | 430 |
| 820 − 389 | 431 |
| 821 − 389 | 432 |