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    Addition with Regrouping: 427 + 389

    Addition with Regrouping Calculator
    First addend
    Second addend

    What is 427 + 389?

    Answer

    427 + 389 =
    816

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

    427 + 389 in a column. Carries are the small circled digits above the columns.
    1carry1carry
    4 2 7
    +389
    816

    Column by column: 427 + 389

    • Ones: 7 + 9 = 16 — write 6, carry 1.
    • Tens: 2 + 8 + 1 = 11 — write 1, carry 1.
    • Hundreds: 4 + 3 + 1 = 8 — write 8.

    427 + 389 = 816

    Second check: 816 − 427 = 389

    Similar examples to practise

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    427 + 389 = 816 - Addition with Regrouping. 427 + 389 = 816. Addition with regrouping step by step: 2 carries, every digit of the sum and a subtraction check.
    https://calculat.io/en/number/long-addition/427--389/generated.jpgCopy

    Column additions with 427

    ExampleSum
    427 + 105532
    427 + 128555
    427 + 136563
    427 + 149576
    427 + 172599
    427 + 187614
    427 + 203630
    427 + 214641
    427 + 239666
    427 + 256683
    427 + 268695
    427 + 291718
    427 + 307734
    427 + 325752
    427 + 348775
    427 + 354781
    427 + 376803
    427 + 389816
    427 + 402829
    427 + 427854
    Recalculate with different values ↑

    FAQ

    What is 427 + 389?

    427 + 389 = 816

    How do you check that 427 + 389 = 816?

    Subtract one addend from the sum: 816 − 389 = 427, and 816 − 427 = 389. Getting the other addend back means the sum is right.

    How many carries are there in 427 + 389?

    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 389 + 427 the same as 427 + 389?

    Yes. Addition is commutative, so both give 816; the column looks the same with either number on top.

    See Also