Addition with Regrouping: 77 + 23
Addition with Regrouping Calculator
What is 77 + 23?
Answer
77 + 23 =
100
The sum is longer than the addends: 2 carries — into the tens and the hundreds; the last one makes a new digit
| 1carry | 1carry | ||
| 7 | 7 | ||
| + | 2 | 3 | |
| 1 | 0 | 0 |
Column by column: 77 + 23
- Ones: 7 + 3 = 10 — write 0, carry 1.
- Tens: 7 + 2 + 1 = 10 — write 0, carry 1.
- Hundreds: the carried 1 — write 1.
77 + 23 = 100
Second check: 100 − 77 = 23
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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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