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    Subtraction with Regrouping: 908 − 389

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 908 − 389?

    Answer

    908 − 389 =
    519

    With regrouping across a zero: 2 borrows — there are no tens to borrow from, so 1 hundred becomes 10 tens, and 1 ten goes to the ones

    908 − 389 in a column. Above the columns: the values after borrowing — a crossed-out digit is replaced by the number above it; +10 marks a column that received a borrowed ten.
    89+10
    9(was 9, now 8)0(was 0, now 9)8 (was 8, now 18)
    −389
    519

    Column by column: 908 − 389

    • Ones: 8 is less than 9 — borrow 1 hundred across the zero: hundreds 9 → 8, tens 0 → 9; 18 − 9 = 9 — write 9.
    • Tens: after borrowing, 9; 9 − 8 = 1 — write 1.
    • Hundreds: after borrowing, 8; 8 − 3 = 5 — write 5.

    908 − 389 = 519

    Second check: 908 − 519 = 389

    Similar examples to practise

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    908 − 389 = 519 - Subtraction with Regrouping. 908 − 389 = 519. Subtraction with regrouping step by step: 2 borrows across a zero, every digit of the difference and an addition check.
    https://calculat.io/en/number/long-subtraction/908--389/generated.jpgCopy

    Column subtractions of 389

    ExampleDifference
    903 − 389514
    904 − 389515
    905 − 389516
    906 − 389517
    907 − 389518
    908 − 389519
    909 − 389520
    910 − 389521
    911 − 389522
    912 − 389523
    913 − 389524
    Recalculate with different values ↑

    FAQ

    What is 908 − 389?

    908 − 389 = 519

    How do you check that 908 − 389 = 519?

    Add the difference and the subtrahend: 519 + 389 = 908. Getting the minuend back means the difference is right.

    How many times do you borrow in 908 − 389?

    2 borrows: each time the top digit was smaller than the one below it, 1 was borrowed from the column on the left.

    Why does 0 become 9 when borrowing in 908 − 389?

    The zero has nothing to lend, so it first borrows 1 from its left neighbour and becomes 10; then it lends 1 to the column on its right and keeps 9.

    See Also