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    Addition with Regrouping: 71 + 29

    Addition with Regrouping Calculator
    First addend
    Second addend

    What is 71 + 29?

    Answer

    71 + 29 =
    100

    The sum is longer than the addends: 2 carries — into the tens and the hundreds; the last one makes a new digit

    71 + 29 in a column. Carries are the small circled digits above the columns.
    1carry1carry
    7 1
    +29
    100

    Column by column: 71 + 29

    • Ones: 1 + 9 = 10 — write 0, carry 1.
    • Tens: 7 + 2 + 1 = 10 — write 0, carry 1.
    • Hundreds: the carried 1 — write 1.

    71 + 29 = 100

    Second check: 100 − 71 = 29

    Similar examples to practise

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    71 + 29 = 100 - Addition with Regrouping. 71 + 29 = 100. Addition with regrouping step by step: 2 carries, every digit of the sum and a subtraction check.
    https://calculat.io/en/number/long-addition/71--29/generated.jpgCopy

    Column additions with 71

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    71 + 1283
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    Recalculate with different values ↑

    FAQ

    What is 71 + 29?

    71 + 29 = 100

    How do you check that 71 + 29 = 100?

    Subtract one addend from the sum: 100 − 29 = 71, and 100 − 71 = 29. Getting the other addend back means the sum is right.

    How many carries are there in 71 + 29?

    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 29 + 71 the same as 71 + 29?

    Yes. Addition is commutative, so both give 100; the column looks the same with either number on top.

    See Also