Basic Operation; Turning On The Calculator; Normal Calculations; Four Basic Calculations (Including Parenthesis Calculations) - Citizen SRP-145T User Manual

7. Tighten the screws.

BASIC OPERATION

TURNING ON THE CALCULATOR

Press [ON/C] to turn on your calculator. A " 0 " shows on the display. If
you leave your calculator on without making any calculation, it
automatically turns itself off in approximately 10 minutes to save
battery life.
Note: Even when the power is off, the calculator's memory retains the
contents of the independent memory, constant memory registers, and
any program steps.

Normal Calculations

• The calculator operates using true algebraic logic; calculations can
be performed in the same sequence as the written formula.
• You can nest up to 42 parentheses at 6 levels, with up to 7
parentheses in one level.
Four Basic Calculations (Including Parenthesis
Calculations)
Example: 7 x 8 − 4 x 5 (= 56 − 20) = 36
Press
[7]
[x]
[8]
[ − ]
[4]
[x]
[5]
[=]
Example: 2 x [ 7 + 6 x (5 + 4) ] = 122
Press
Display
DEG
7.
DEG
7.
DEG
8.
DEG
56.
DEG
4.
DEG
4.
DEG
5.
DEG
36.
Display
-
E8-
Comment
Enter value
Enter operation
Enter value to
operate by
Enter operation,
show result
Enter value to
operate by
Enter operation
Enter value to
operate by
Enter operation,
show result
Comment