Subtraction with Regrouping: 122 − 39
Subtraction with Regrouping Calculator
What is 122 − 39?
Answer
122 − 39 =
83
With regrouping: 2 borrows — from the tens and the hundreds
| 0 | 11 | +10 | |
| 2 (was 2, now 12) | |||
| − | 3 | 9 | |
| 8 | 3 |
Column by column: 122 − 39
- Ones: 2 is less than 9 — borrow 1 ten: tens 2 → 1; 12 − 9 = 3 — write 3.
- Tens: after borrowing, 1; 1 is less than 3 — borrow 1 hundred: hundreds 1 → 0; 11 − 3 = 8 — write 8.
- Hundreds: after borrowing, 0 — a leading zero is not written.
122 − 39 = 83
Second check: 122 − 83 = 39
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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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