Subtraction with Regrouping: 122 − 28
Subtraction with Regrouping Calculator
What is 122 − 28?
Answer
122 − 28 =
94
With regrouping: 2 borrows — from the tens and the hundreds
| 0 | 11 | +10 | |
| 2 (was 2, now 12) | |||
| − | 2 | 8 | |
| 9 | 4 |
Column by column: 122 − 28
- Ones: 2 is less than 8 — borrow 1 ten: tens 2 → 1; 12 − 8 = 4 — write 4.
- 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.
122 − 28 = 94
Second check: 122 − 94 = 28
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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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