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    Subtraction with Regrouping: 800 − 63

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 800 − 63?

    Answer

    800 − 63 =
    737

    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

    800 − 63 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.
    79+10
    8(was 8, now 7)0(was 0, now 9)0 (was 0, now 10)
    −63
    737

    Column by column: 800 − 63

    • Ones: 0 is less than 3 — borrow 1 hundred across the zero: hundreds 8 → 7, tens 0 → 9; 10 − 3 = 7 — write 7.
    • Tens: after borrowing, 9; 9 − 6 = 3 — write 3.
    • Hundreds: after borrowing, 7; nothing to subtract — write 7.

    800 − 63 = 737

    Second check: 800 − 737 = 63

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    https://calculat.io/en/number/long-subtraction/800--63Copy
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    800 − 63 = 737 - Subtraction with Regrouping. 800 − 63 = 737. 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/800--63/generated.jpgCopy

    Column subtractions of 63

    ExampleDifference
    266 − 63203
    300 − 63237
    302 − 63239
    331 − 63268
    370 − 63307
    411 − 63348
    439 − 63376
    465 − 63402
    516 − 63453
    548 − 63485
    599 − 63536
    641 − 63578
    700 − 63637
    710 − 63647
    800 − 63737
    900 − 63837
    1,000 − 63937
    2,000 − 631,937
    5,000 − 634,937
    10,000 − 639,937
    Recalculate with different values ↑

    FAQ

    What is 800 − 63?

    800 − 63 = 737

    How do you check that 800 − 63 = 737?

    Add the difference and the subtrahend: 737 + 63 = 800. Getting the minuend back means the difference is right.

    How many times do you borrow in 800 − 63?

    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 800 − 63?

    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