Basic Math
GradeMatic 4000
uses standard chaining
logic for calculations. This means that
when solving a problem, it solves in the
order entered.
Keystrokes
Display
3 [+] 2 [=]
5.
3 [–] 2 [=]
1.
3 [x] 2 [=]
6.
3 [÷] 2 [=]
1.5
Percent Calculations
The percent key is used to find a
given percentage of a number or for
working add–on, discount, or divi-
sion percentage calculations.
Keystrokes
Display
355 [x] 15 [%]
53.25
100 [÷] 50 [%]
200.
250 [+] 6.5 [%]
266.25
25
[–] 5 [%]
23.75
%
User’s Guide– 9
