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    Addition with Regrouping: 729 + 71

    Addition with Regrouping Calculator
    First addend
    Second addend

    What is 729 + 71?

    Answer

    729 + 71 =
    800

    With regrouping: 2 carries — into the tens and the hundreds

    729 + 71 in a column. Carries are the small circled digits above the columns.
    1carry1carry
    7 2 9
    +71
    800

    Column by column: 729 + 71

    • Ones: 9 + 1 = 10 — write 0, carry 1.
    • Tens: 2 + 7 + 1 = 10 — write 0, carry 1.
    • Hundreds: 7 + 1 = 8 — write 8.

    729 + 71 = 800

    Second check: 800 − 729 = 71

    Similar examples to practise

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    729 + 71 = 800 - Addition with Regrouping. 729 + 71 = 800. Addition with regrouping step by step: 2 carries, every digit of the sum and a subtraction check.
    https://calculat.io/en/number/long-addition/729--71/generated.jpgCopy

    Column additions with 71

    ExampleSum
    203 + 71274
    229 + 71300
    239 + 71310
    268 + 71339
    307 + 71378
    348 + 71419
    376 + 71447
    402 + 71473
    453 + 71524
    485 + 71556
    536 + 71607
    578 + 71649
    629 + 71700
    647 + 71718
    729 + 71800
    829 + 71900
    929 + 711,000
    1,929 + 712,000
    4,929 + 715,000
    9,929 + 7110,000
    Recalculate with different values ↑

    FAQ

    What is 729 + 71?

    729 + 71 = 800

    How do you check that 729 + 71 = 800?

    Subtract one addend from the sum: 800 − 71 = 729, and 800 − 729 = 71. Getting the other addend back means the sum is right.

    How many carries are there in 729 + 71?

    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 71 + 729 the same as 729 + 71?

    Yes. Addition is commutative, so both give 800; the column looks the same with either number on top.

    See Also