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    Addition with Regrouping: 468 + 172

    Addition with Regrouping Calculator
    First addend
    Second addend

    What is 468 + 172?

    Answer

    468 + 172 =
    640

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

    468 + 172 in a column. Carries are the small circled digits above the columns.
    1carry1carry
    4 6 8
    +172
    640

    Column by column: 468 + 172

    • Ones: 8 + 2 = 10 — write 0, carry 1.
    • Tens: 6 + 7 + 1 = 14 — write 4, carry 1.
    • Hundreds: 4 + 1 + 1 = 6 — write 6.

    468 + 172 = 640

    Second check: 640 − 468 = 172

    Similar examples to practise

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    468 + 172 = 640 - Addition with Regrouping. 468 + 172 = 640. Addition with regrouping step by step: 2 carries, every digit of the sum and a subtraction check.
    https://calculat.io/en/number/long-addition/468--172/generated.jpgCopy

    FAQ

    What is 468 + 172?

    468 + 172 = 640

    How do you check that 468 + 172 = 640?

    Subtract one addend from the sum: 640 − 172 = 468, and 640 − 468 = 172. Getting the other addend back means the sum is right.

    How many carries are there in 468 + 172?

    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 172 + 468 the same as 468 + 172?

    Yes. Addition is commutative, so both give 640; the column looks the same with either number on top.