Casio FX 65 User Manual

FX 65 Training guide

Tools FX 65 Fraction Calculator
Overhead OH 65

Handouts Applicable activities
Activities for the Classroom FX-65 Fraction Calculator

Other materials Quick Reference Guide (inside the calculator cover)
Key Points/

Content
Display Indicators
Display Set Up
Basic Arithmetic Calculations

Probability

Memory

Trigonometry

Statistics

Overview

Basic Functions and Operations
Basic Calculations
Fraction calculations and simplification
Percent calculations
Default angle unit setting and conversions
Powers and roots
Internal Rounding

Random number generation
Permutations and combinations
Factorials

Memory Calculations
Constant Memory Calculations

Trigonometric/Inverse Trigonometric Functions
Hyperbolic/ Inverse Hyperbolic Functions
Coordinate Conversion
Logarithmic Functions

Entering and analyzing statistical data

 True fraction display
 Fraction and decimal conversions
 Integer division (quotient and remainder)
 Ability to fix decimal places
 Basic scientific functions
 Single variable statistics
 Super solar power- operates even in low light

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References the Casio FX-65 User’s Guide Casio FX-65 Fraction calculator

FX 65 Training guide

Display Indicators

The display window has many indicators that will be displayed when a certain function is
performed. Alternat ively, it may also show th e status of a setting. The following is a lis t of the
display indicators along with a description:

Indicator Meaning
FIX Number of decimal places is fixed.
SCI Number of significant digits is fixed.
SIMP Displayed fraction can be simplified.
R Remainder of division.
‘ 3-digit separator
( ) Parentheses
M A value is stored in memory.
E Error
+ Addition

- Subtraction
x Multiplicat ion

÷
÷R

Division
Division with remainder

= Result

D
R
G

Degrees
Radians
Grads

STAT Statistics mode. The calculator is in the COMP

mode when this indicator is not on the display.

y

x

1/y

x

The yth power of x.

The yth root of x.
F1 Data is stored in constant memory F1.
F2 Data is stored in constant memory F2.
S

[SHIFT] was pressed
Hyp Hyperbolic function

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References the Casio FX-65 User’s Guide Casio FX-65 Fraction calculator

FX 65 Training guide

Display Set Up

The FX-65 allows you to change the display format for the following:

Fixed number decimal places
Number of significant digits in scientific notation
Engineering notation mode

Key Function
[FIX] n Sets the number of decimal places according to the

value you input for n (0 – 9).
[FIX] [.] Clears the decimal place setting.
[SHIFT] [SCI] n Sets the number of significant digits according to

the value you input for n (0 – 9).
[SHIFT] [SCI] [.] Clear the scientific notation setting.
[SHIFT] [ENG] Enters the engineering notation mode and

normalizes the displayed value so its exponent is a

positive multiple of three.
[SHIFT] [

ENG

Enters the engineering notation mode and

]

normalizes the displayed value so its exponent is a

negative multiple of three.

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References the Casio FX-65 User’s Guide Casio FX-65 Fraction calculator