Addition with Regrouping: 83 + 78
Addition with Regrouping Calculator
What is 83 + 78?
Answer
83 + 78 =
161
The sum is longer than the addends: 2 carries — into the tens and the hundreds; the last one makes a new digit
| 1carry | 1carry | ||
| 8 | 3 | ||
| + | 7 | 8 | |
| 1 | 6 | 1 |
Column by column: 83 + 78
- Ones: 3 + 8 = 11 — write 1, carry 1.
- Tens: 8 + 7 + 1 = 16 — write 6, carry 1.
- Hundreds: the carried 1 — write 1.
83 + 78 = 161
Second check: 161 − 83 = 78
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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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