
LD9988 User Manual Page 72
CHAPTER 4 CALCULATOR AND FINANCE
Simple Calculator
It contains the functions of the calculator, which includes four operations, square,
subduplicate and percentage calculation. (Both Key-entry and Touch-and-go
operations are supported.)
Choose “Simple Calc.” from calculator
menu screen, then press
.
Calculate 126+12=?
Input “126” and press
(i.e. “+”).
Input “12” and press
(i.e. “=”),
then to get the result “126+12=138”.
Press
or touch
to clear the
data and begin another calculation.
Touch
to clear the inputted data.
Calculate 200×10%=?
Input “200” and press
(i.e. “×”).
Input “10” and press
(i.e. “%”),
then press
(i.e. “=”), the result
“20” will be displayed.
Press
(i.e. “M+”) to store the value to
the memory.
Press
(i.e. “M-“) to clear the value
stored in the memory.