NexxTech 6500542 - Manual (Page 3)

3 A Look at Your Calculator
Backspace Key — deletes the last
number entered.
Mark-Up Key — helps you easily de-
termine cost, final price, and profit
margin.
% Key — simplifies calculation of per-
centages.
Four Function Memory — lets you
add to, subtract from, recall subtotals
in, and clear all numbers from memo-
ry.
Automatic Shut-Off — conserves
battery power by automatically turn-
ing off your calculator about 8–10
minutes after the last entry.
Grand Total Key — makes compli-
cated calculations easier.
Square Root Key — lets you quickly
compute the square root of a number.
ˆ
A Look at Your Calculator
F 0 2 3 4 A — lets
you select how
many digits ap-
pear after the deci-
mal (see “Setting
the Number of
Decimal Places”
on Page 5).
Memory Keys —
let you save, add
to, and subtract
from numbers in
memory (see
“Memory Calcula-
tions” on Page 8).
5/4 — lets you
select how calcu-
lation results are
rounded (see
“Rounding” on
Page 5).
+ / – — lets you
change a number
to positive or nega-
tive (see “Using
the Special Func-
tion Keys” on
Page 4).
— deletes the
last digit entered
(see “Using the
Special Function
Keys” on Page 4).
GT (Grand Total)
— provides the
sum of all memo-
rized numbers
(see “Grand To-
tal” on Page 7).
MU (Mark-Up) —
lets you calculate
selling prices and
profit margins
(see “Mark-Up
Calculations” on
Page 8).