Addition with Regrouping: 85 + 17
Addition with Regrouping Calculator
What is 85 + 17?
Answer
85 + 17 =
102
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 | 5 | ||
| + | 1 | 7 | |
| 1 | 0 | 2 |
Column by column: 85 + 17
- Ones: 5 + 7 = 12 — write 2, carry 1.
- Tens: 8 + 1 + 1 = 10 — write 0, carry 1.
- Hundreds: the carried 1 — write 1.
85 + 17 = 102
Second check: 102 − 85 = 17
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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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