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    Subtraction with Regrouping: 1,049 − 485

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 1,049 − 485?

    Answer

    1,049 − 485 =
    564

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

    1,049 − 485 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.
    09+10
    1(was 1, now 0)0(was 0, now 9)4 (was 4, now 14)9
    −485
    564

    Column by column: 1,049 − 485

    • Ones: 9 − 5 = 4 — write 4.
    • Tens: 4 is less than 8 — borrow 1 thousand across the zero: thousands 1 → 0, hundreds 0 → 9; 14 − 8 = 6 — write 6.
    • Hundreds: after borrowing, 9; 9 − 4 = 5 — write 5.
    • Thousands: after borrowing, 0 — a leading zero is not written.

    1,049 − 485 = 564

    Second check: 1,049 − 564 = 485

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    1,049 − 485 = 564 - Subtraction with Regrouping. 1,049 − 485 = 564. 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/1049--485/generated.jpgCopy

    Column subtractions of 485

    ExampleDifference
    1,044 − 485559
    1,045 − 485560
    1,046 − 485561
    1,047 − 485562
    1,048 − 485563
    1,049 − 485564
    1,050 − 485565
    1,051 − 485566
    1,052 − 485567
    1,053 − 485568
    1,054 − 485569
    Recalculate with different values ↑

    FAQ

    What is 1,049 − 485?

    1,049 − 485 = 564

    How do you check that 1,049 − 485 = 564?

    Add the difference and the subtrahend: 564 + 485 = 1,049. Getting the minuend back means the difference is right.

    How many times do you borrow in 1,049 − 485?

    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 1,049 − 485?

    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