# Operation, Turning on the calculator, Using the special function keys – NexxTech 6500542 User Manual

## Page 4: Clearing entries, Rounding, Setting the number of decimal places, Centages, Makes comp, Easier, U select how many digits ap- pear after the dec

4

Operation



Operation

TURNING ON THE

CALCULATOR

Press

ON/AC

to turn on the calculator.

The calculator automatically turns off
after about 9 minutes if you do not
press any key.

Note: The calculator clears all previ-
ous entries when it turns off.

USING THE SPECIAL

FUNCTION KEYS

Press

+/–

to change the displayed

number from positive to negative or
from negative to positive.

Press

to delete the last digit en-

tered (for example, when you press
the wrong number key).

Press

00

to enter two zeros at once.

CLEARING ENTRIES

To clear an incorrect entry and contin-
ue the current calculation, press

CE

once (

0.

appears), then enter the

correct value and continue your cal-
culation.

To clear the display and begin a new
calculation, press

ON/AC

(

0.

ap-

pears), then begin the new calcula-
tion.

To clear an incorrect operator key (

+

,

,

Ч

,

ч

) entry during a calculation, sim-

ply press the correct operator key and

ROUNDING

5/4

.

determines how the calculator

rounds numbers to the right of a deci-
mal point (depending on the

F 0 2 3 4

A

setting — see “Setting the Number

of Decimal Places”).

rounds off the rightmost digit of the

calculation result to the next highest
number.

5/4

rounds off the rightmost digit of a

calculation result to the next highest
number if the next digit is 5 or more.
Rounds off to the next lowest number
if the next digit is 4 or less.

rounds off the rightmost digit of the

calculation result to the next lowest
number.

SETTING THE NUMBER

OF DECIMAL PLACES

F 0 2 3 4 A

lets you set how many

numbers appear to the right of the
decimal point in the displayed result.

With the switch set to

A

, the calculator

automatically inserts a decimal point