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Congratulations! You have just acquired the PLC650 desktop calculator with computer
®
keypad from Lexibook
This calculator will allow you to perform standard calculations as well as advanced
functions such as percentage, memory, tax calculation and corrections to the last 99
calculations.
In order to get the most out of your PLC650 calculator, read this instruction manual
carefully and keep it in a safe place for future reference.
1.
1. Keys
The "00" key allows you to quickly enter hundreds. Example: Press "5", then the "00"
key and the calculator will display "500".
If you repeatedly press the calculation signs (+, -, x, ÷), the calculation will be
repeated. For example, if you enter "20 + +", the calculator will display "40", which is
the result of 20+20.
The decimal point selector allows you to select from 0, 2, 4 decimal places, or a
floating decimal place (position F), or an automatic conversion to 2 decimal places
(position A).
The round down/up selector allows you to choose round down to the nearest lower
unit (position "↓"), round up to the nearest higher unit (position "↑"), or a result
automatically rounded up/down (position "5/4").
The calculation counter indicator showing the number of calculations carried out
appears at the top left of the screen. Calculations are recorded in the memory until
you press the "ON/AC" key, or you reach 99 calculations. Press "ON/AC" in order to
delete all calculations stored in the memory.
2.
Percentage calculations
To calculate
20€ + 6% tax = 21.2€
150€ minus 20% = 120€
Note:
If you have pressed the wrong arithmetic function key (addition, subtraction,
multiplication, division), immediately press the correct function key to repair
the mistake and proceed with the calculation.
Copyright © Lexibook 2003
All manuals and user guides at all-guides.com
Introduction
.
Calculations
Press
Display
20 + 6 %
21.2
150 – 20 %
120
3
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