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    Subtraction with Regrouping: 1,001 − 354

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 1,001 − 354?

    Answer

    1,001 − 354 =
    647

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

    1,001 − 354 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.
    099+10
    1(was 1, now 0)0(was 0, now 9)0(was 0, now 9)1 (was 1, now 11)
    −354
    647

    Column by column: 1,001 − 354

    • Ones: 1 is less than 4 — borrow 1 thousand across the zero: thousands 1 → 0, hundreds 0 → 9, tens 0 → 9; 11 − 4 = 7 — write 7.
    • Tens: after borrowing, 9; 9 − 5 = 4 — write 4.
    • Hundreds: after borrowing, 9; 9 − 3 = 6 — write 6.
    • Thousands: after borrowing, 0 — a leading zero is not written.

    1,001 − 354 = 647

    Second check: 1,001 − 647 = 354

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    1,001 − 354 = 647 - Subtraction with Regrouping. 1,001 − 354 = 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/1001--354/generated.jpgCopy

    Column subtractions of 354

    ExampleDifference
    708 − 354354
    730 − 354376
    743 − 354389
    756 − 354402
    781 − 354427
    807 − 354453
    822 − 354468
    839 − 354485
    873 − 354519
    890 − 354536
    918 − 354564
    932 − 354578
    956 − 354602
    1,001 − 354647
    1,037 − 354683
    Recalculate with different values ↑

    FAQ

    What is 1,001 − 354?

    1,001 − 354 = 647

    How do you check that 1,001 − 354 = 647?

    Add the difference and the subtrahend: 647 + 354 = 1,001. Getting the minuend back means the difference is right.

    How many times do you borrow in 1,001 − 354?

    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 1,001 − 354?

    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