Basic Math Examples

Evaluate 120-40
120-4012040
Step 1
Subtract using long subtraction.
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Step 1.1
Set up the subtraction problem in long subtraction format.
112200
-4400
Step 1.2
Subtract 00 from 00.
112200
-4400
00
Step 1.3
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.
001212
120
-40
0
Step 1.4
Subtract 4 from 12.
012
120
-40
80
Step 1.5
Subtract 0 from 0.
012
120
-40
080
012
120
-40
080
Step 2
The result of 120-40 is 80.
80
 [x2  12  π  xdx ]