Feedback form
Hi! What do you think?

Drag it here or paste with Ctrl+V

    You can also email us on infocalculat.io

    Subtraction with Regrouping: 664 − 17

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 664 − 17?

    Answer

    664 − 17 =
    647

    With regrouping: 1 borrow — from the tens

    664 − 17 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.
    5+10
    6 6(was 6, now 5)4 (was 4, now 14)
    −17
    647

    Column by column: 664 − 17

    • Ones: 4 is less than 7 — borrow 1 ten: tens 6 → 5; 14 − 7 = 7 — write 7.
    • Tens: after borrowing, 5; 5 − 1 = 4 — write 4.
    • Hundreds: nothing to subtract — write 6.

    664 − 17 = 647

    Second check: 664 − 647 = 17

    Similar examples to practise

    Related Calculations

    See Also

    Share This Calculation
    Print
    https://calculat.io/en/number/long-subtraction/664--17Copy
    <a href="https://calculat.io/en/number/long-subtraction/664--17">664 − 17 = 647 - Subtraction with Regrouping - Calculatio</a>Copy
    Facebook
    Twitter
    Telegram
    WhatsApp
    Viber
    Email
    664 − 17 = 647 - Subtraction with Regrouping. 664 − 17 = 647. Subtraction with regrouping step by step: 1 borrow, every digit of the difference and an addition check.
    https://calculat.io/en/number/long-subtraction/664--17/generated.jpgCopy

    Column subtractions of 17

    ExampleDifference
    109 − 1792
    111 − 1794
    115 − 1798
    122 − 17105
    153 − 17136
    189 − 17172
    200 − 17183
    220 − 17203
    256 − 17239
    285 − 17268
    300 − 17283
    324 − 17307
    365 − 17348
    393 − 17376
    419 − 17402
    470 − 17453
    502 − 17485
    553 − 17536
    595 − 17578
    664 − 17647
    Recalculate with different values ↑

    FAQ

    What is 664 − 17?

    664 − 17 = 647

    How do you check that 664 − 17 = 647?

    Add the difference and the subtrahend: 647 + 17 = 664. Getting the minuend back means the difference is right.

    How many times do you borrow in 664 − 17?

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

    See Also