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    Addition with Regrouping: 877 + 23

    Addition with Regrouping Calculator
    First addend
    Second addend

    What is 877 + 23?

    Answer

    877 + 23 =
    900

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

    877 + 23 in a column. Carries are the small circled digits above the columns.
    1carry1carry
    8 7 7
    +23
    900

    Column by column: 877 + 23

    • Ones: 7 + 3 = 10 — write 0, carry 1.
    • Tens: 7 + 2 + 1 = 10 — write 0, carry 1.
    • Hundreds: 8 + 1 = 9 — write 9.

    877 + 23 = 900

    Second check: 900 − 877 = 23

    Similar examples to practise

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    877 + 23 = 900 - Addition with Regrouping. 877 + 23 = 900. Addition with regrouping step by step: 2 carries, every digit of the sum and a subtraction check.
    https://calculat.io/en/number/long-addition/877--23/generated.jpgCopy

    Column additions with 23

    ExampleSum
    203 + 23226
    239 + 23262
    268 + 23291
    277 + 23300
    307 + 23330
    348 + 23371
    376 + 23399
    402 + 23425
    453 + 23476
    485 + 23508
    536 + 23559
    578 + 23601
    647 + 23670
    677 + 23700
    777 + 23800
    877 + 23900
    977 + 231,000
    1,977 + 232,000
    4,977 + 235,000
    9,977 + 2310,000
    Recalculate with different values ↑

    FAQ

    What is 877 + 23?

    877 + 23 = 900

    How do you check that 877 + 23 = 900?

    Subtract one addend from the sum: 900 − 23 = 877, and 900 − 877 = 23. Getting the other addend back means the sum is right.

    How many carries are there in 877 + 23?

    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 23 + 877 the same as 877 + 23?

    Yes. Addition is commutative, so both give 900; the column looks the same with either number on top.

    See Also