CALCUALATOR
adding
+
=
subtracting
-
=
multiplying
*
=
dividing
/
=
how to do it
First click on first box. If you wont to add. So click on down of the adding box type any number in two boxes and click on =. So the sum will come. Not anly add any sum. Click prtecral but you should see heeding in each box or see the suymbols