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    Addition with Regrouping: 12,345 + 12,345

    Addition with Regrouping Calculator
    First addend
    Second addend

    What is 12,345 + 12,345?

    Answer

    12,345 + 12,345 =
    24,690

    With regrouping: 1 carry — into the tens

    12,345 + 12,345 in a column. Carries are the small circled digits above the columns.
    1carry
    1 2 3 4 5
    +12345
    24690

    Column by column: 12,345 + 12,345

    • Ones: 5 + 5 = 10 — write 0, carry 1.
    • Tens: 4 + 4 + 1 = 9 — write 9.
    • Hundreds: 3 + 3 = 6 — write 6.
    • Thousands: 2 + 2 = 4 — write 4.
    • Ten thousands: 1 + 1 = 2 — write 2.

    12,345 + 12,345 = 24,690

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    https://calculat.io/en/number/long-addition/12345--12345Copy
    <a href="https://calculat.io/en/number/long-addition/12345--12345">12,345 + 12,345 = 24,690 - Addition with Regrouping</a>Copy
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    12,345 + 12,345 = 24,690 - Addition with Regrouping. 12,345 + 12,345 = 24,690. Addition with regrouping step by step: 1 carry, every digit of the sum and a subtraction check.
    https://calculat.io/en/number/long-addition/12345--12345/generated.jpgCopy

    Column additions with 12,345

    ExampleSum
    12,345 + 12,34024,685
    12,345 + 12,34124,686
    12,345 + 12,34224,687
    12,345 + 12,34324,688
    12,345 + 12,34424,689
    12,345 + 12,34524,690
    12,346 + 12,34524,691
    12,347 + 12,34524,692
    12,348 + 12,34524,693
    12,349 + 12,34524,694
    12,350 + 12,34524,695
    Recalculate with different values ↑

    FAQ

    What is 12,345 + 12,345?

    12,345 + 12,345 = 24,690

    How do you check that 12,345 + 12,345 = 24,690?

    Subtract one addend from the sum: 24,690 − 12,345 = 12,345. Getting the other addend back means the sum is right.

    How many carries are there in 12,345 + 12,345?

    1 carry: every time a column added up to 10 or more, its ones digit was written and 1 was carried to the next column on the left.

    See Also