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    Column Addition: 45 + 34

    Addition with Regrouping Calculator
    First addend
    Second addend

    What is 45 + 34?

    Answer

    45 + 34 =
    79

    No regrouping: each column is added on its own

    45 + 34 in a column. No carries.
    4 5
    +34
    79

    Column by column: 45 + 34

    • Ones: 5 + 4 = 9 — write 9.
    • Tens: 4 + 3 = 7 — write 7.

    45 + 34 = 79

    Second check: 79 − 45 = 34

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    <a href="https://calculat.io/en/number/long-addition/45--34">45 + 34 = 79 - Column Addition - Calculatio</a>Copy
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    45 + 34 = 79 - Column Addition. 45 + 34 = 79. Column addition step by step: no carrying, every digit of the sum and a subtraction check.
    https://calculat.io/en/number/long-addition/45--34/generated.jpgCopy

    Column additions with 34

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    34 + 3468
    36 + 3470
    39 + 3473
    41 + 3475
    45 + 3479
    47 + 3481
    52 + 3486
    54 + 3488
    58 + 3492
    63 + 3497
    65 + 3499
    67 + 34101
    69 + 34103
    71 + 34105
    74 + 34108
    76 + 34110
    78 + 34112
    83 + 34117
    85 + 34119
    89 + 34123
    Recalculate with different values ↑

    FAQ

    What is 45 + 34?

    45 + 34 = 79

    How do you check that 45 + 34 = 79?

    Subtract one addend from the sum: 79 − 34 = 45, and 79 − 45 = 34. Getting the other addend back means the sum is right.

    How many carries are there in 45 + 34?

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

    Is 34 + 45 the same as 45 + 34?

    Yes. Addition is commutative, so both give 79; the column looks the same with either number on top.

    See Also