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    Subtraction with Regrouping: 1,036 − 389

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 1,036 − 389?

    Answer

    1,036 − 389 =
    647

    With regrouping across a zero: 3 borrows — there are no hundreds to borrow from, so 1 thousand becomes 10 hundreds, and 1 hundred goes to the tens

    1,036 − 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.
    0912+10
    1(was 1, now 0)0(was 0, now 9)3(was 3, now 12)6 (was 6, now 16)
    −389
    647

    Column by column: 1,036 − 389

    • Ones: 6 is less than 9 — borrow 1 ten: tens 3 → 2; 16 − 9 = 7 — write 7.
    • Tens: after borrowing, 2; 2 is less than 8 — borrow 1 thousand across the zero: thousands 1 → 0, hundreds 0 → 9; 12 − 8 = 4 — write 4.
    • Hundreds: after borrowing, 9; 9 − 3 = 6 — write 6.
    • Thousands: after borrowing, 0 — a leading zero is not written.

    1,036 − 389 = 647

    Second check: 1,036 − 647 = 389

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    1,036 − 389 = 647 - Subtraction with Regrouping. 1,036 − 389 = 647. Subtraction with regrouping step by step: 3 borrows across a zero, every digit of the difference and an addition check.
    https://calculat.io/en/number/long-subtraction/1036--389/generated.jpgCopy

    Column subtractions of 389

    ExampleDifference
    1,031 − 389642
    1,032 − 389643
    1,033 − 389644
    1,034 − 389645
    1,035 − 389646
    1,036 − 389647
    1,037 − 389648
    1,038 − 389649
    1,039 − 389650
    1,040 − 389651
    1,041 − 389652
    Recalculate with different values ↑

    FAQ

    What is 1,036 − 389?

    1,036 − 389 = 647

    How do you check that 1,036 − 389 = 647?

    Add the difference and the subtrahend: 647 + 389 = 1,036. Getting the minuend back means the difference is right.

    How many times do you borrow in 1,036 − 389?

    3 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 1,036 − 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