The Casio fx-260 Solar Calculator guide
 

The GED Tests have been designed to reflect what graduating seniors know and can do.  The use of the scientific calculator is common in most high school level math courses.  The GED 2002 Mathematics Test allows the use of the Casio fx-260 Solar  calculator for Part I of the test.  Keys and basic functions found on the Casio fx-260 Solar calculator are identified to help you become familiar with the instrument.

A - Display panel - "DEG" should appear at the top- center of the screen
B - Clear and All Clear keys are shown in red
C - Basic operation keys for addition, subtraction, multiplication, division, and equal
D - EXP - Displays the most commonly used number for pi - 3.141592654
E - Decimal point
F - Number of digit keys
G - Four keys to remember
        +/-  changes a positive to a negative
        >     backspace key
        ((...  open parentheses
        ...))  close parentheses
H - a b/c  - Fraction key
I -  Two keys to remember
        Shift - use in combination with another key
        X(squared) - squares a number or with the shift key calculates square root.


Steps to Remember When Using the Calculator

When taking the GED 2002 Mathematics Test, check your calculator by doing the following:
        Open the calculator
        Visually check for any defects in the solar panel, screen, and keys
        Press the "ON" button (upper right hand key)
        Check that the display screen shows "DEG" in the upper center of the screen and "0" at the       
right. If the calculator is in an alternate mode, press the "Mode" key and the "4". This will shift the calculator to the appropriate mode.
        Press the AC (Clear All) key.  This will ensure that all previous information has been deleted.
        Press the number 8 and fill the entire display screen.  This will ensure that the display is working appropriately and that all numbers will be displayed properly.
        Check for proper order of operations by completing a basic problem such as:       
                    2+(6-4)x (10/2) = 12
 

Basic Key Functions of the Casio fx-260 Solar Calculator

ON        Power On                                AC    Power On/All Clear

C            Clear                                       >        Backspace Key

.              Decimal Point                          3        Digit or Number Key

Shift        Use in conjunction with another key to change function

Basic Calculations

+            Addition                                    __        Subtraction

x            Multiplication                               

=            Equal    

Special Keys   

a b/c        Fraction key                                +/-        Sign Change

%            Percent Key = (SHIFT +  =)            EXP    Exponent

((...           Open parentheses                        ...))        Close parentheses

II            Pi or 3.14159266536  = (SHIFT + EXP)
 

Using the Casio fx-250 Calculator - Click Here 
Using the Casio fx-250 Calculator Advanced Calculations - Click Here

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