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    Column Addition: 12,345 + 1,234

    Addition with Regrouping Calculator
    First addend
    Second addend

    What is 12,345 + 1,234?

    Answer

    12,345 + 1,234 =
    13,579

    No regrouping: each column is added on its own

    12,345 + 1,234 in a column. No carries.
    1 2 3 4 5
    +1234
    13579

    Column by column: 12,345 + 1,234

    • Ones: 5 + 4 = 9 — write 9.
    • Tens: 4 + 3 = 7 — write 7.
    • Hundreds: 3 + 2 = 5 — write 5.
    • Thousands: 2 + 1 = 3 — write 3.
    • Ten thousands: nothing to add — write 1.

    12,345 + 1,234 = 13,579

    Second check: 13,579 − 12,345 = 1,234

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    https://calculat.io/en/number/long-addition/12345--1234Copy
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    12,345 + 1,234 = 13,579 - Column Addition. 12,345 + 1,234 = 13,579. Column addition step by step: no carrying, every digit of the sum and a subtraction check.
    https://calculat.io/en/number/long-addition/12345--1234/generated.jpgCopy

    Column additions with 1,234

    ExampleSum
    1,234 + 1,2342,468
    2,468 + 1,2343,702
    3,579 + 1,2344,813
    4,805 + 1,2346,039
    5,096 + 1,2346,330
    6,713 + 1,2347,947
    7,350 + 1,2348,584
    8,042 + 1,2349,276
    12,345 + 1,23413,579
    23,456 + 1,23424,690
    45,089 + 1,23446,323
    70,312 + 1,23471,546
    123,456 + 1,234124,690
    405,067 + 1,234406,301
    987,654 + 1,234988,888
    Recalculate with different values ↑

    FAQ

    What is 12,345 + 1,234?

    12,345 + 1,234 = 13,579

    How do you check that 12,345 + 1,234 = 13,579?

    Subtract one addend from the sum: 13,579 − 1,234 = 12,345, and 13,579 − 12,345 = 1,234. Getting the other addend back means the sum is right.

    How many carries are there in 12,345 + 1,234?

    None: no column adds up to 10 or more, so every digit of the sum is written straight away.

    Is 1,234 + 12,345 the same as 12,345 + 1,234?

    Yes. Addition is commutative, so both give 13,579; the column looks the same with either number on top.

    See Also