Subtraction with Regrouping: 170 − 85
Subtraction with Regrouping Calculator
What is 170 − 85?
Answer
170 − 85 =
85
With regrouping: 2 borrows — from the tens and the hundreds
| 0 | 16 | +10 | |
| 0 (was 0, now 10) | |||
| − | 8 | 5 | |
| 8 | 5 |
Column by column: 170 − 85
- Ones: 0 is less than 5 — borrow 1 ten: tens 7 → 6; 10 − 5 = 5 — write 5.
- Tens: after borrowing, 6; 6 is less than 8 — borrow 1 hundred: hundreds 1 → 0; 16 − 8 = 8 — write 8.
- Hundreds: after borrowing, 0 — a leading zero is not written.
170 − 85 = 85
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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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