FX 300 MS Training guide
Tools FX 300 MS Calculator
Overhead OH 300 MS
Handouts Applicable activities
Activities for the Classroom FX-300 Scientific Calculator
Other materials Quick Reference Guide (inside the calculator cover)
Key Points/
Content
BASIC ARITHMETIC CALCULATIONS Mode 1 (Comp) Computation
STATISTICAL CALCULATIONS
Overview
Making Corrections During Input
Replay Function
Order of Operations
Display Format (FIX, SCI, Norm)
Fraction Display
Decimal-Fraction Conversion
Angle Display
Initial Defaults
Percentage Calculations
Degrees/Minutes/Seconds
Memory Calculations
Answer Memory
Consecutive Calculations
Independent Memory
Variables
Clearing Memory
Powers/Square Roots/Cube Root, nth roots
Probability Calculations/Random Number/Factorials
Trigonometry
Trigonometric/Inverse Trigonometric Functions
Hyperbolic/ Inverse Hyperbolic Functions
Convert Radians to Degrees
Coordinate Conversion
Logarithms/Natural Logarithms
Standard Deviation Mode 2 (SD) Standard Deviation
Regression
Two line display
VPAM to show formulas as in textbooks
(Visually Perfect Algebraic Method)
Fraction key; Mixed number vs. improper fractions
Recall and edit function
Statistics mode including standard deviation and regression
Mode 3 (Reg) Regression
1
References the Casio FX-300 MS User’s Guide Casio FX-300MS Scientific calculator
FX 300 MS Training guide
Basic Arithmetic Calculations
Making Corrections During Input
• Use the left and right arrows on the REPLAY function to move the cursor to the
location you want to correct.
• Press [DEL] to delete at the current cursor position
• Press [SHIFT] [INS] to change the cursor to an insert cursor [ ].
Replay Function
Every time you perform a calculation, the replay function stores the calculation formula
and its result in replay memory. Pressing the up arrow displays the formula and result of
the calculation you last performed. If you continue to press the up arrow, you will scroll
sequentially through your last calculations (most recent to oldest).
Notes:
Replay memory capacity is 128 bytes.
Pressing AC will not clear the replay memory.
If you want to clear the replay memory, press the ON key or reset the modes/settings:
Press [SHIFT] [C L R] [2] [=] or [SHIF T ] [CLR] [3] [=] .
Order of Operations
The calculator uses “order of operations”.
Examples: 2 + 3 x 4 = 14 You do not need parentheses around 3 x 4.
(2 + 3) x 4 = 20 Use Replay and [SHIFT] [INS] to add parentheses.
Blinking [ ] is the insert cursor.
- 2
(- 2)
Display Format
To change the exponential display format, press the [MODE] key 3 times.
Fixed number of decimal places: Press 1: FIX
Scientific Notation: Press 2: SCI
Normal Notation: Press 3: NORM
2
= - 4
2
= 4
You will then be prompted for the number of
decimal places (0 – 9).
You will then be prompted for the number of
significant digits (0 – 9).
You will then be prompted for NORM 1 or NORM 2.
NORM 1 uses exponential notation for integers with
more than 10 digits and decimal values with more
than 2 decimal places. Ex/ 1 ÷ 1000 = 1 x 10
-3
NORM 2 uses exponential notation for integers with
more than 10 digits and decimal values with more
than 9 decimal places. Ex/ 1 ÷ 1000 = .001
2
References the Casio FX-300 MS User’s Guide Casio FX-300MS Scientific calculator
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Fraction Display
You can use the display set up screen to specify the display format when a fraction
calculation result is greater than one. To set the fraction display, press the [MODE] key
4 times and press “1” for Display (DISP).
Mixed Fraction: Press 1: a b/c
Improper Fraction: Press 2: d/c
Decimal-Fraction Conversion
Examples:
Keystrokes Display
Enter [2.75] [=] 2.75
Press [a b/c] 2 3 4
[SHIFT] [d/c] 11 4
Angle Display
To set the angle unit at degrees, radians, or grads, press the [MODE] key 2 times.
Degrees Press 1
Radians Press 2
Grads Press 3
Initial Defaults
To return the calculation mode and setup to the initial defaults, press [SHIFT] [CLR] [2]
[=]. This will return the calculator to the following settings:
Calculation mode COMP
Angle unit Deg
Exponential display format Norm 1
Fraction display format a b/c
Decimal point character Dot
Percentage Calculations
Examples:
To find percentage of
a number.
12% of 15 [15] [x] [12] [SHIFT] [%] 1.8
To calculate percentage
of one number to another.
What percentage of 80 is 40? [40] [
Example
5
4
3
2
3
2
Keystrokes Display
] [80] [SHIFT] [%] 50
÷
2
=+
6
3
17
4
=+
6
3
3
References the Casio FX-300 MS User’s Guide Casio FX-300MS Scientific calculator
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To add a percentage.
15% to 1000 [1000] [x] [15] [SHIFT] [%] [+] 1150
To discount a percentage.
85 by 10% [85] [x] [10] [SHIFT] [%] [ -] 76.5
% change, when a value
is increased.
From 30 to 36 [36] [–] [30] [SHIFT] [%] 20
Degrees/Minutes/Seconds
You can perform calculations using degrees, minutes, and seconds, and convert
between sexagesimal and decimal values.
Examples:
Keystrokes Display
[2.5] [=] 2.5
,,,o
Press [
[10] [
Memory Calculations
There are different types of memory available:
Answer Memory, Consecutive Calculations, Independent Memory, and Variables.
Answer Memory
Whenever you press [=] after inputting values or an expression, the calculated result
automatically updates the Answer Memory contents by storing the result. You can recall
it by pressing [ANS].
Consecutive Calculations
You can use the calculation result that is currently on display (and also stored in Answer
Memory) as the first value of your next calculation.
Independent Memory
Independent Memory uses the memory area in variable M and is convenient for
calculating cumu lative total s .
To add a value to M, press [M+].
To subtract a value from M, press [SHIFT] [M-].
To recall the value of M, press [RCL] [M].
Variables
There are 9 variables available (including M) to store data (A through F, M, X, and Y).
To add a value to memory letter A, enter the value and press [SHIFT] [STO] [A].
To recall the value of A, press [RCL] [A].
Clearing Memory
To clear independent memory, press [0] [SHIFT] [STO] [M] (
To delete data assigned to a specific variable, press [0] [SHIFT] [STO] <> (enter the
letter you want to clear, without pressing the ALPHA key).
To clear the values assigned to all of the variables, press [SHIFT] [CLR] [1] [=].
] 2° 30° 0
,,,o ,,,o ,,,o
] [15] [ ] [12] [ ] [x] [4] [=] 41° 0° 48°
Note
: Do NOT use the ALPHA key.
this stores 0 in M
).
4
References the Casio FX-300 MS User’s Guide Casio FX-300MS Scientific calculator
FX 300 MS Training guide
Powers/Square Roots/Cube Root, nth roots
To square a number: Use the [x2] key
Example: [5] [x
To cube a number: Use the [x3] key
Example: [3] [
To raise a number to a power Use the [∧] key
(other than 2 or 3): Example: [2] [∧] [4] = 16
To find a square root: Use the [ ] key
2
] [=] 25
3
x
] [=] 27
Example: [
To find a cube root: Use the [
3
Example: [SHIFT] [
To find a root Use the [
x
(other than square or cube root): Example: [ 4 ] [SHIFT] [
To find a reciprocal: Use the [x-1] key
Example: [5] [x
Note: Press [a b/c] and the display will change to 1/5.
Probability Calculations/ Random Number/ Factorials
Permutations A permutation is a selection of objects in which the order of the
objects matters.
Example: To determine the possible number of different
arrangements using 4 items selected from 10 items.
[10] [SHIFT] [nPr] [4] [=] 5040
Combinations A combination is a selection of objects from a collection and order
is irrelevant.
Example: To determine the number of different combinations of 4
items selected from 10 items
[10] [nCr] [4] [=] 210
Factorials To calculate a factorial, use [SHIFT] [x!]
Random Number To generate a random number between 0 and 1,
press [SHIFT] [Ran#] [=]
] [25] [=] 5
] key
3
] key
-1
] [=] .2
] [27] [=] 3
x
] [81] = 3
5
References the Casio FX-300 MS User’s Guide Casio FX-300MS Scientific calculator
FX 300 MS Training guide
Trigonometry
Trigonometric/Inverse Trigonometric Functions
You can use sin, cos and tan to calculate and solve trigonometric equations.
Examples (in degree mode):
Keystrokes Display
[sin] [30] [=] 0.5
[SHIFT] [sin] [.5] [=] 30
Hyperbolic/Inverse Hyperbolic Functions
Examples (in degree mode):
Keystrokes Display
[hyp] [sin] [3.6] [=] 18.28545536
[SHIFT] [hyp] [sin] [30] [=] 4.094622224
Or
[hyp] [SHIFT] [sin] [30] [=]
Convert Radians to Degrees
To convert Radians to Degrees, put the calculator in Degree mode.
Example:
Press [SHIFT] [
To convert Degrees to Radians, put the calculator in Radian mode.
Example: 180 degrees to radians
Press [180] [SHIFT] [DRG] and press [1] for Degrees [=] 3.141592654
Coordinate Conversion
You can convert from polar to rectangular and from rectangular to polar. The calculation
results are automatically assigned to variables E and F.
sure you are in degree mode.
To convert polar coordinates (r, θ) to rectangular coordinates (x, y).
Example: To convert ( r = 2, θ = 60) to rectangular coordinates:
Press [SHIFT] [REC] [2] [ , ] [60] [ ) ] [=] 1 (x value)
[RCL] [F] 1.732050808 (y value)
To convert rectangular coordinates (x, y) to polar coordinates (r, θ).
Example: To convert ( x = 1, y =
π
radians to degrees
π
] [SHIFT] [DRG] and press [2] for Radians [=] 180
Note: For both examples, be
3
) to rectangular coordinates:
Press [POL] [1] [ , ] [
[RCL] [F] 60 (θ value)
] [3] [ ) ] [=] 2 (r value)
6
References the Casio FX-300 MS User’s Guide Casio FX-300MS Scientific calculator
FX 300 MS Training guide
Logarithms/Natural Logarithms
You can find logarithms, natural logarithms, and antilogarithms.
Examples:
Keystrokes Display
[log] [100] [=] 2
[ln] [90] [=] 4.49980967
[ln] [ALPHA] [e] 1
[SHIFT] [e
[SHIFT] [10
x
] [1] [=] 2.718281828
x
] [2] [=] 100
7
References the Casio FX-300 MS User’s Guide Casio FX-300MS Scientific calculator
FX 300 MS Training guide
Standard Deviation
Use the [MODE] key to enter the Standard Deviation (SD) mode when you want to perform
statistical calculations using standard deviation. [MODE] [2]
• To clear statisti ca l me mory, press [SHIFT] [CLR] [1] [=].
• To enter data, use the following key sequence: <value> [DT]
• Input data is used to calculate the following values:
Sum of the squares (∑ x
Sum of data (∑ x) [SHIFT] [S-SUM] [2]
Number of data items (n) [SHIFT] [S-SUM] [3]
Mean of the data [SHIFT] [S-VAR] [1]
Population standard deviation σ n [SHIFT] [S-VAR] [2]
Sample standard deviation σ n
Key points to note:
• [DT] [DT] inputs the same data twice
• You can input multiple entries of the same data using [SHIFT] [;].
To input 100 ten times, press [100] [SHIFT] [;] [10] [DT]
• You can scroll through the data you entered using the up and down arrows on the
REPLAY button.
• You can edit the displayed data by inputting a new value and then pressing the [=]
key to replace it. If you use the [DT] key (and not the [=] key), this will register the
value you input as a new data item and will leave the old value as is.
• If you want to perform statistical calculations, always press the [AC] key first to exit
the data display.
• To delete a data value that is displayed, press [SHIFT] [CL].
• If you switch to another MODE, you will no longer be able to display or edit your
data.
2
) [SHIFT] [S-SUM] [1]
-1
[SHIFT] [S-VAR] [3]
8
References the Casio FX-300 MS User’s Guide Casio FX-300MS Scientific calculator
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Regression
Use the [MODE] key to enter the Regression (REG) mode when you want to perform statistical
calculations using regression. [MODE] [3]
When you enter Regression mode, you can select from 6 types of regression:
Linear regression [1] (Lin)
Logarithmic regression [2] (Log)
Exponential regression [3] (Exp)
Power regression → [1] (Pwr)
Inverse regression → [2] (Inv)
Quadratic regression → [3] (Quad)
• To clear statisti ca l me mory, press [SHIFT] [CLR] [1] [=].
• To enter data, use the following key sequence: <x data> , <y data> [DT]
• The values produced by a regression calculation depend on the values input.
Results can be recalled using the following:
2
[SHIFT] [S-SUM] [1]
∑ x
∑ x [SHIFT] [S-SUM] [2]
n [SHIFT] [S-SUM] [3]
2
∑ y
∑ y [SHIFT] [S-SUM] → [2]
∑ xy [SHIFT] [S-SUM] → [3]
Mean of the x data [SHIFT] [S-VAR] [1]
Population standard deviation (x) [SHIFT] [S-VAR] [2]
Sample standard deviation (x) [SHIFT] [S-VAR] [3]
Mean of the y data [SHIFT] [S-VAR] → [1]
Population standard deviation (y) [SHIFT] [S-VAR] → [2]
Sample standard deviation (y) [SHIFT] [S-VAR] → [3]
Regression coefficient A [SHIFT] [S-VAR] → → [1]
Regression coefficient B [SHIFT] [S-VAR] → → [2]
For regression calculations other than quadratic regression:
Correlation coefficient r [SHIFT] [S-VAR] → → [3]
Estimate x [SHIFT] [S-VAR] → → → [1]
Estimate y [SHIFT] [S-VAR] → → → [2]
For quadratic regression:
3
[SHIFT] [S-SUM] → → [1]
∑ x
2
∑ x
y [SHIFT] [S-SUM] → → [2]
4
[SHIFT] [S-SUM] → → [3]
∑ x
Regression coefficient C [SHIFT] [S-VAR] → → [3]
Estimate x
Estimate x
[SHIFT] [S-VAR] → → → [1]
1
[SHIFT] [S-VAR] → → → [2]
2
Estimate y [SHIFT] [S-VAR] → → → [3]
[SHIFT] [S-SUM] → [1]
9
References the Casio FX-300 MS User’s Guide Casio FX-300MS Scientific calculator
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