Subtract Two-Digit Numbers Without Borrowing

Subtract 43 from 76 by subtracting each column from right to left. No borrowing is needed because each top digit is >= the bottom digit.

Example

sub-76-43.math

   76
-  43
-----

step: ones: 6 - 3 = 3, write 3
step: tens: 7 - 4 = 3, write 3
step: 76 - 43 = 33

column-subtraction Line up digits by place value and subtract each column from right to left. When the top digit is greater than or equal to the bottom digit in every column, subtract directly with no borrowing.