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    Subtraction with Regrouping: 73 − 28

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 73 − 28?

    Answer

    73 − 28 =
    45

    With regrouping: 1 borrow — from the tens

    73 − 28 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.
    6+10
    7(was 7, now 6)3 (was 3, now 13)
    −28
    45

    Column by column: 73 − 28

    • Ones: 3 is less than 8 — borrow 1 ten: tens 7 → 6; 13 − 8 = 5 — write 5.
    • Tens: after borrowing, 6; 6 − 2 = 4 — write 4.

    73 − 28 = 45

    Second check: 73 − 45 = 28

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    73 − 28 = 45 - Subtraction with Regrouping. 73 − 28 = 45. Subtraction with regrouping step by step: 1 borrow, every digit of the difference and an addition check.
    https://calculat.io/en/number/long-subtraction/73--28/generated.jpgCopy

    Column subtractions of 28

    ExampleDifference
    56 − 2828
    62 − 2834
    64 − 2836
    67 − 2839
    69 − 2841
    73 − 2845
    75 − 2847
    80 − 2852
    82 − 2854
    86 − 2858
    91 − 2863
    93 − 2865
    95 − 2867
    97 − 2869
    99 − 2871
    100 − 2872
    102 − 2874
    104 − 2876
    106 − 2878
    111 − 2883
    Recalculate with different values ↑

    FAQ

    What is 73 − 28?

    73 − 28 = 45

    How do you check that 73 − 28 = 45?

    Add the difference and the subtrahend: 45 + 28 = 73. Getting the minuend back means the difference is right.

    How many times do you borrow in 73 − 28?

    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