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    Addition with Regrouping: 123,456 + 23,456

    Addition with Regrouping Calculator
    First addend
    Second addend

    What is 123,456 + 23,456?

    Answer

    123,456 + 23,456 =
    146,912

    With regrouping: 2 carries — into the tens and the hundreds

    123,456 + 23,456 in a column. Carries are the small circled digits above the columns.
    1carry1carry
    1 2 3 4 5 6
    +23456
    146912

    Column by column: 123,456 + 23,456

    • Ones: 6 + 6 = 12 — write 2, carry 1.
    • Tens: 5 + 5 + 1 = 11 — write 1, carry 1.
    • Hundreds: 4 + 4 + 1 = 9 — write 9.
    • Thousands: 3 + 3 = 6 — write 6.
    • Ten thousands: 2 + 2 = 4 — write 4.
    • Hundred thousands: nothing to add — write 1.

    123,456 + 23,456 = 146,912

    Second check: 146,912 − 123,456 = 23,456

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    https://calculat.io/en/number/long-addition/123456--23456Copy
    <a href="https://calculat.io/en/number/long-addition/123456--23456">123,456 + 23,456 = 146,912 - Addition with Regrouping</a>Copy
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    123,456 + 23,456 = 146,912 - Addition with Regrouping. 123,456 + 23,456 = 146,912. Addition with regrouping step by step: 2 carries, every digit of the sum and a subtraction check.
    https://calculat.io/en/number/long-addition/123456--23456/generated.jpgCopy

    Column additions with 23,456

    ExampleSum
    123,451 + 23,456146,907
    123,452 + 23,456146,908
    123,453 + 23,456146,909
    123,454 + 23,456146,910
    123,455 + 23,456146,911
    123,456 + 23,456146,912
    123,457 + 23,456146,913
    123,458 + 23,456146,914
    123,459 + 23,456146,915
    123,460 + 23,456146,916
    123,461 + 23,456146,917
    Recalculate with different values ↑

    FAQ

    What is 123,456 + 23,456?

    123,456 + 23,456 = 146,912

    How do you check that 123,456 + 23,456 = 146,912?

    Subtract one addend from the sum: 146,912 − 23,456 = 123,456, and 146,912 − 123,456 = 23,456. Getting the other addend back means the sum is right.

    How many carries are there in 123,456 + 23,456?

    2 carries: 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.

    Is 23,456 + 123,456 the same as 123,456 + 23,456?

    Yes. Addition is commutative, so both give 146,912; the column looks the same with either number on top.

    See Also