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How do you get it out of PENTA mode without a 2nd button on a Casio fx-300ES

I don't have a 2nd key so how do I get it out of PENTA mode

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My calculator is to light and i have no 2nd key

The key is marked [Shift] on Casios, [2nd] on TI's, and [2nd F] on Sharps. I have seen some cheap calculators that mark the key as [Inv]. HP calculators are rather different in that respect.

Sep 20, 2013 | Casio fx-300ES Calculator

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How do you change decimal to fraction on a CASIO fx-300ES PLUS

To convert a single value between the symbolic and decimal formats, press the S--D key (above the DEL key). To have all results come out in symbolic form press SHIFT [MODE] 1 to select the MthIO mode.

Be aware that the calculator cannot display all values in symbolic form.

Mar 30, 2013 | Casio fx-300ES Calculator

1 Answer

I am looking for a manual for the casio fx-300es to figure out how to get a answer in decimal not fractions

To convert a single value from symbolic to decimal, press the S-D key (just above the DEL key). To have all results come out in decimal, press SHIFT MODE 2 to switch to the LineIO mode.
You can download the manual and the appendix here.

Oct 03, 2011 | Casio fx-300ES Calculator

1 Answer

My Casio fx-300ES calculator has a problem when i press the fraction button under Abs i get a symbol looking like "_l" anyway to fix this?

That is what you will get if your calculator is configured for the Line IO mode. If you want fractions to appear as in a textbook, you should configure your calculator's Input/Output mode to be MathIO. To do so press [SHIFT][MODE] to enter (SetUp) and select [1:MathIO]

Jul 08, 2011 | Casio fx-300ES Calculator

1 Answer

How do I multiply by Pi. (Where's the Pi button on the Casio fx-300ES)

pi is the shifted function of the x10^x key, middle of the bottom row.

Apr 05, 2011 | Casio fx-300ES Calculator

1 Answer

Will the CASIO fx-300ES find the antilog? If so, how do I use this function?

Antilog is a somewhat outdated terminology for the inverse function of the logarithm.
To calculate on your FX-300ES the base 2 antilog of 4, key in
Correct result is 16.

Jan 20, 2011 | Casio fx-300ES Calculator

1 Answer

How do i change a fraction to a decimal on my casio fx-300es

To convert a single result to decimal, press the SD button. To have all results come out in decimal, press SHIFT MODE 2 to select the LineIO mode.

Oct 04, 2010 | Casio fx-300ES Calculator

1 Answer

Casio fx-300es. How do you enter a variable? what button do you press to represent x in x+7=14 or any other problem with a variable. Everyone has a ti 84 and they have a button for x.

You have a way to enter the Variables A, B,C,D, Y and X.
Use the ALPHA key
For A use ALPHA change sign key (-), below the Fraction Template.
For B use ALPHA (degree ' ")
For C use ALPHA (HYP)
For D use ALPHA (SIN)
For X use ALPHA right )
For Y use , ALPHA (S-D) key
For =, use ALPHA and the key below the SHIFT key. May be marked CALC. The = is in the same color as the ALPHA on calculator. It should be to the upper right side of a key.

(I have an FX-991ES that is compatible with the FX-300ES, but since I do not have a picture of the FX-300ES calculator I cannot be more specific than I have been, lest I mislead you.)

Apr 09, 2010 | Casio fx-300ES Calculator

2 Answers

How do I get decimal answers

I had the same problem. To change the output to decimals, do the following:
Go to Math mode, then SHIFT, MODE (set-up), 2 (lineIO). This will cause answers to show in decimal format. I hope this helps.

I was able to find a manual at:

Nov 06, 2007 | Casio fx-300ES Calculator

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