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    Column Addition: 203 + 15

    Addition with Regrouping Calculator
    First addend
    Second addend

    What is 203 + 15?

    Answer

    203 + 15 =
    218

    No regrouping: each column is added on its own

    203 + 15 in a column. No carries.
    2 0 3
    +15
    218

    Column by column: 203 + 15

    • Ones: 3 + 5 = 8 — write 8.
    • Tens: 0 + 1 = 1 — write 1.
    • Hundreds: nothing to add — write 2.

    203 + 15 = 218

    Second check: 218 − 203 = 15

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    <a href="https://calculat.io/en/number/long-addition/203--15">203 + 15 = 218 - Column Addition - Calculatio</a>Copy
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    203 + 15 = 218 - Column Addition. 203 + 15 = 218. Column addition step by step: no carrying, every digit of the sum and a subtraction check.
    https://calculat.io/en/number/long-addition/203--15/generated.jpgCopy

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    Recalculate with different values ↑

    FAQ

    What is 203 + 15?

    203 + 15 = 218

    How do you check that 203 + 15 = 218?

    Subtract one addend from the sum: 218 − 15 = 203, and 218 − 203 = 15. Getting the other addend back means the sum is right.

    How many carries are there in 203 + 15?

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

    Is 15 + 203 the same as 203 + 15?

    Yes. Addition is commutative, so both give 218; the column looks the same with either number on top.

    See Also