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    Column Addition: 172 + 12

    Addition with Regrouping Calculator
    First addend
    Second addend

    What is 172 + 12?

    Answer

    172 + 12 =
    184

    No regrouping: each column is added on its own

    172 + 12 in a column. No carries.
    1 7 2
    +12
    184

    Column by column: 172 + 12

    • Ones: 2 + 2 = 4 — write 4.
    • Tens: 7 + 1 = 8 — write 8.
    • Hundreds: nothing to add — write 1.

    172 + 12 = 184

    Second check: 184 − 172 = 12

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    <a href="https://calculat.io/en/number/long-addition/172--12">172 + 12 = 184 - Column Addition - Calculatio</a>Copy
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    172 + 12 = 184 - Column Addition. 172 + 12 = 184. Column addition step by step: no carrying, every digit of the sum and a subtraction check.
    https://calculat.io/en/number/long-addition/172--12/generated.jpgCopy

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    Recalculate with different values ↑

    FAQ

    What is 172 + 12?

    172 + 12 = 184

    How do you check that 172 + 12 = 184?

    Subtract one addend from the sum: 184 − 12 = 172, and 184 − 172 = 12. Getting the other addend back means the sum is right.

    How many carries are there in 172 + 12?

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

    Is 12 + 172 the same as 172 + 12?

    Yes. Addition is commutative, so both give 184; the column looks the same with either number on top.

    See Also