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: 172 − 78

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 172 − 78?

    Answer

    172 − 78 =
    94

    With regrouping: 2 borrows — from the tens and the hundreds

    172 − 78 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.
    016+10
    1(was 1, now 0)7(was 7, now 16)2 (was 2, now 12)
    −78
    94

    Column by column: 172 − 78

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

    172 − 78 = 94

    Second check: 172 − 94 = 78

    Similar examples to practise

    Related Calculations

    See Also

    Share This Calculation
    Print
    https://calculat.io/en/number/long-subtraction/172--78Copy
    <a href="https://calculat.io/en/number/long-subtraction/172--78">172 − 78 = 94 - Subtraction with Regrouping - Calculatio</a>Copy
    Facebook
    Twitter
    Telegram
    WhatsApp
    Viber
    Email
    172 − 78 = 94 - Subtraction with Regrouping. 172 − 78 = 94. Subtraction with regrouping step by step: 2 borrows, every digit of the difference and an addition check.
    https://calculat.io/en/number/long-subtraction/172--78/generated.jpgCopy

    Column subtractions of 78

    ExampleDifference
    156 − 7878
    161 − 7883
    163 − 7885
    167 − 7889
    170 − 7892
    172 − 7894
    176 − 7898
    183 − 78105
    214 − 78136
    250 − 78172
    281 − 78203
    317 − 78239
    346 − 78268
    385 − 78307
    426 − 78348
    454 − 78376
    480 − 78402
    531 − 78453
    563 − 78485
    614 − 78536
    Recalculate with different values ↑

    FAQ

    What is 172 − 78?

    172 − 78 = 94

    How do you check that 172 − 78 = 94?

    Add the difference and the subtrahend: 94 + 78 = 172. Getting the minuend back means the difference is right.

    How many times do you borrow in 172 − 78?

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

    See Also