Subtraction with Regrouping: 163 − 78
Subtraction with Regrouping Calculator
What is 163 − 78?
Answer
163 − 78 =
85
With regrouping: 2 borrows — from the tens and the hundreds
| 0 | 15 | +10 | |
| 3 (was 3, now 13) | |||
| − | 7 | 8 | |
| 8 | 5 |
Column by column: 163 − 78
- Ones: 3 is less than 8 — borrow 1 ten: tens 6 → 5; 13 − 8 = 5 — write 5.
- Tens: after borrowing, 5; 5 is less than 7 — borrow 1 hundred: hundreds 1 → 0; 15 − 7 = 8 — write 8.
- Hundreds: after borrowing, 0 — a leading zero is not written.
163 − 78 = 85
Second check: 163 − 85 = 78
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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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