Addition with Regrouping: 8,042 + 3,579
Addition with Regrouping Calculator
What is 8,042 + 3,579?
Answer
8,042 + 3,579 =
11,621
The sum is longer than the addends: 3 carries — into the tens, the hundreds and the ten thousands; the last one makes a new digit
| 1carry | 1carry | 1carry | |||
| 8 | 0 | 4 | 2 | ||
| + | 3 | 5 | 7 | 9 | |
| 1 | 1 | 6 | 2 | 1 |
Column by column: 8,042 + 3,579
- Ones: 2 + 9 = 11 — write 1, carry 1.
- Tens: 4 + 7 + 1 = 12 — write 2, carry 1.
- Hundreds: 0 + 5 + 1 = 6 — write 6.
- Thousands: 8 + 3 = 11 — write 1, carry 1.
- Ten thousands: the carried 1 — write 1.
8,042 + 3,579 = 11,621
Second check: 11,621 − 8,042 = 3,579
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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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Column additions with 3,579
| Example | Sum |
|---|---|
| 8,037 + 3,579 | 11,616 |
| 8,038 + 3,579 | 11,617 |
| 8,039 + 3,579 | 11,618 |
| 8,040 + 3,579 | 11,619 |
| 8,041 + 3,579 | 11,620 |
| 8,042 + 3,579 | 11,621 |
| 8,043 + 3,579 | 11,622 |
| 8,044 + 3,579 | 11,623 |
| 8,045 + 3,579 | 11,624 |
| 8,046 + 3,579 | 11,625 |
| 8,047 + 3,579 | 11,626 |