Basic Math Examples

Evaluate 72-45
72-457245
Step 1
Subtract using long subtraction.
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Step 1.1
Set up the subtraction problem in long subtraction format.
7722
-4455
Step 1.2
Borrow 1010 from the digit in the next column to the left. Add the borrowed 1010 to 22. Reduce the number that was borrowed from by 11.
661212
72
-45
Step 1.3
Subtract 5 from 12.
612
72
-45
7
Step 1.4
Subtract 4 from 6.
612
72
-45
27
612
72
-45
27
Step 2
The result of 72-45 is 27.
27
 [x2  12  π  xdx ]