Addition with Regrouping: 389 + 128
Addition with Regrouping Calculator
What is 389 + 128?
Answer
389 + 128 =
517
With regrouping: 2 carries — into the tens and the hundreds
| 1carry | 1carry | ||
| 3 | 8 | 9 | |
| + | 1 | 2 | 8 |
| 5 | 1 | 7 |
Column by column: 389 + 128
- Ones: 9 + 8 = 17 — write 7, carry 1.
- Tens: 8 + 2 + 1 = 11 — write 1, carry 1.
- Hundreds: 3 + 1 + 1 = 5 — write 5.
389 + 128 = 517
Second check: 517 − 389 = 128
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- Subtraction with Regrouping Calculator - Column subtraction step by step, with borrowing across zeros
- Long Multiplication Calculator - Column multiplication with partial products, step by step
- Long Division Calculator - Step-by-step long division with detailed explanation
- Adding Fractions Calculator - Add fractions, mixed numbers and whole numbers step by step
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