Subtraction with Regrouping: 121 − 23
Subtraction with Regrouping Calculator
What is 121 − 23?
Answer
121 − 23 =
98
With regrouping: 2 borrows — from the tens and the hundreds
| 0 | 11 | +10 | |
| 1 (was 1, now 11) | |||
| − | 2 | 3 | |
| 9 | 8 |
Column by column: 121 − 23
- Ones: 1 is less than 3 — borrow 1 ten: tens 2 → 1; 11 − 3 = 8 — write 8.
- Tens: after borrowing, 1; 1 is less than 2 — borrow 1 hundred: hundreds 1 → 0; 11 − 2 = 9 — write 9.
- Hundreds: after borrowing, 0 — a leading zero is not written.
121 − 23 = 98
Second check: 121 − 98 = 23
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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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