Question about Office Equipment & Supplies

3 Answers

CASIO FX-83ES - reset to factory settings

Please could you tell me how to reset this calculator? Back to factory settings?

Posted by Andiec on

  • 11 more comments 
  • Andiec Nov 15, 2007

    oh there is something else wrong other than the settings, as I have re set and it is still not working correctly.

    if i divide 500 by .4 it brings it to a fraction, this is fine as I press S-D but it then turns it into the following answer 8x10to the power of negative 4!!!

    I am looking to convert it back to .0008

    How can I do this?

  • Andiec Nov 15, 2007

    its ok I have fixed my problem, it was due to the amoutn of decimal places I had my calculator set to show, I have set it to 9 so its fine now.

    thanks fir your help

  • shopper07 Nov 24, 2007

    I do not have my instruction book any more. I was wondering if I could get a new one, or a copy of one. I would be really helpful so I can fix my problen which is that I can't divide numbers that don't go into eachother equally. For example 47 divided by 7 comes out to be 47 over 7. An instruction book would be great thanks.

  • Anonymous Nov 30, 2007

    Need to reset decimal on my BA II Plus. Cannot figure it out..

  • Anonymous Dec 03, 2007

    I have this same problem, where the calulator shows me the fraction instead of the decimal number. I tried changing the number of decimal places and it didn't work.

    Any other ideas?

  • kalsoom Jan 02, 2008

    when i try to do division calculations the answer comes up as a fraction but i want to change it to decimal format

  • guest911102 Jan 04, 2008

    no matter what i seem to do all i get is a fraction when dividing and its really important i work this out for my physics exam next week

  • shannonOx Jun 12, 2008

    every time i divide a decimal point it igves me a fraction like for e.g. 250.36 divided by 2 ee 6259 over 50 how can i fix this

  • graciedot Oct 25, 2008

    i have tried all of the solutions posted on here so far and the answers are still coming up as fractions! i'm beginning to tear my hair out, please help! thank you

  • Anonymous Nov 25, 2008

    I have a calculator CASIO fx-9750GA. I want to convert certain decimals into fractions and when I press the d/c button it says "SYN error" I don't know what that is? I tried pressing Shift and then the Set-up button and the first option is Mode and the one below it is Func Type. Across from Mode it says "comp" I don't know how to change from there either. Please help. I rather use the d/c button, why is it not working?

  • Anonymous Dec 15, 2008

    cn someone explain how to reset my calc pls ^^? i dnt hv a button thingy at the bk like my old calc so i dunno how to reset this one. thanks =]

  • Anonymous Apr 28, 2009

    no goodf yoooaa

  • Anonymous May 08, 2009

    THANK YOU!!!!!! +++++++ it worked




3 Answers

Rommel Balcita

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 749 Answers

Try removing its batteries first.

Posted on Nov 15, 2007

  • 1 more comment 
  • Rommel Balcita Nov 15, 2007

    if you don't feel like removing the battery then perform this operation!

    SHIFT 9 (CLR) 3 (ALL) = YES

    This will initialize the calculator and return the calculation mode and setup to its initial default setting. this will also clear all data currently in the calculator.

  • gee1996 Jun 07, 2011

    That really worked that you :)

  • sarahbooth69
    sarahbooth69 Jun 12, 2012

    thankyou, another happy customer.




Shift , setup button.. 1 is for fraction, 2 for decimal.

Posted on Aug 23, 2008



Switch it on, press SHIFT button then Mode/Setup button (top right corner) then press 2 to put it in LineIO mode.

Tayeb Kazemi,

Posted on Jan 06, 2008

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Hi there, i have the same problem with the Casio fx 83ES. Simple Sums difficult without Exp?

The Enter Exponent key may be marked as x10^x. It is in the last row of keys, near the =/EXE. To enter a negative exponent use the change sign key (-), not the minus key for subtractions.

May 01, 2012 | Casio Office Equipment & Supplies

1 Answer

How do i convert 45degrees into radians on my casio fx-83es calculator?

To convert from radians to degrees, multiply by pi and divide by 180.

Feb 19, 2011 | Casio FX-115ES Scientific Calculator

1 Answer

CASIO fx-83es

Press [SHIFT][AC] (ON).
Hope it helps.

Oct 20, 2009 | Casio fx-300ES Calculator

1 Answer

I am having trouble simplifying ratios on the FX-83ES. Any ideas? For example 10:5 should come up with 2:1, but it comes up with 10 when I press =.

am having trouble simplifying... Solve I am having trouble simplifying ratios on the FX-83ES. Any ideas? For example 10:5 should come up... (More) I am having trouble simplifying ratios on the FX-83ES. Any ideas? For example 10:5 should come up with 2:1, but it comes up with 10 when I press =.

Sep 13, 2009 | Casio FX-300MS Calculator

2 Answers

I cant find the EXP or ee button on my casio

the EXP button is the one that says 'x10' next to the 'Ans' key at the bottom.

May 01, 2009 | Casio fx-300ES Calculator

2 Answers

Casio fx-83ES

Press Shift and then In 

Dec 08, 2008 | Casio fx-300ES Calculator

1 Answer

Tan cos etc with casio fx-83ES

set it up in correct rig mode, mode button (several times) until you get a window showing deg - rad - grad, choose deg (degree mode)

Nov 19, 2008 | Casio fx-300ES Calculator

Not finding what you are looking for?
Office Equipment & Supplies Logo

Related Topics:

19,528 people viewed this question

Ask a Question

Usually answered in minutes!

Top Office Equipment & Supplies Experts


Level 3 Expert

13434 Answers


Level 3 Expert

85239 Answers

The Knight
The Knight

Level 3 Expert

76390 Answers

Are you an Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides