LEXIBOOK CU50 Manuel D'instructions page 11

Calculation examples
Note: before each new calculation, please press
Example
(2+5-3) x 8÷4-7=1
(23x7) + (12÷4) –
(13x2) – (9÷2) = 133.5
3 x 2÷5 =0.01728
3 5
85% of 360
Add 2% on 360
Minus 15% on 360
How to set the tax
rate: tax rate 5%
How to recall the tax
rate: 5%
Price: 100 tax: 5%
Price 150 including
5% tax
(-8X85) – 233
Send the result to
in a spreadsheet or
Word ® file.
Power source:
1 AG10 battery.
To replace the battery, open the battery compartment at the back of the unit using a
screwdriver.
Insert a new battery (+ side facing up) and close back the battery compartment. Tighten
the screw.
Automatic switch off:
If no key is pressed, the calculator will switch itself off automatically after approximately
8 minutes.
Abnormal Conditions
If this calculator is exposed to a powerful external electric field or shock during use, an
abnormal condition may occur in which all the keys, including ON/C/CE, do not function.
In this case, reset the unit by removing the battery and inserting it again.
CU50IM0186.indd 11
All manuals and user guides at all-guides.com
Operation
2 + 5 – 3 X 8 ÷ 4 – 7 =
23 X 7 M+ 12 ÷ 4 M+ 13 x 2 M- 9 ÷
2 M- MRC MRC
3 X = = X 2 ÷5 = = = = =
360 x 85 %
360 x 2 % + =
360 x 15 % - =
5 RATE TAX+
RATE TAX-
100 TAX+
150 TAX-
+
8 X 85 – 233 = SEND
to clear all previous entries.
ON
C/CE
Display
1
133.5
0.01728
306
367.2
306
5
5
105
142.857142857
-913
11
11/05/2006 16:49:55