Question about Casio FX-300MS Calculator

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Posted on Jan 02, 2017

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Finding the remainder from a division calculation is often referred to as using the MOD function, though this isn't available directly on the fx-991ES.

To obtain the remainder, for example when dividing 10 by 7, you can only divide 7 into 10 once, leaving a remainder of 3.

For larger numbers, eg when dividing 389487 by 31 (equivalent to 389487MOD31) the division gives an answer of 12564.09677 (on the display), however you only want the fractional part so subtract 12564 to give 0.0967741935 . This includes the lower value digits that were previously hidden. Then multiply this result by 31 which gives 2.999999999 on the display. Since the result of a MOD or remainder calculation involving integers has to be a whole number, the answer needs to be rounded to 3. If the answer doesn't easily round to a whole number, it is likely that you have gone beyond the calculator's working capacity.

An alternative method which avoids the rounding of the fractional part is to take the integer part of the first result (12564) and multiply it by 31 to get 389484, then subtract this from 389487, giving the answer of 3.

To obtain the remainder, for example when dividing 10 by 7, you can only divide 7 into 10 once, leaving a remainder of 3.

For larger numbers, eg when dividing 389487 by 31 (equivalent to 389487MOD31) the division gives an answer of 12564.09677 (on the display), however you only want the fractional part so subtract 12564 to give 0.0967741935 . This includes the lower value digits that were previously hidden. Then multiply this result by 31 which gives 2.999999999 on the display. Since the result of a MOD or remainder calculation involving integers has to be a whole number, the answer needs to be rounded to 3. If the answer doesn't easily round to a whole number, it is likely that you have gone beyond the calculator's working capacity.

An alternative method which avoids the rounding of the fractional part is to take the integer part of the first result (12564) and multiply it by 31 to get 389484, then subtract this from 389487, giving the answer of 3.

Dec 16, 2012 | Casio FX991ES Scientific Calculator

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

Oct 17, 2010 | Casio FX-115ES Scientific Calculator

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

Sep 16, 2010 | Casio FX-115ES Scientific Calculator

Make sure you use the (-) key in the left column above the RCL key to enter negative exponents, not the - key which subtracts.

Do get all results in decimal instead of fraction notation, press SHIFT [SETUP] 2 to select LineIO mode.

Do get all results in decimal instead of fraction notation, press SHIFT [SETUP] 2 to select LineIO mode.

Sep 12, 2010 | Casio FX-115ES Scientific Calculator

- Press [S<=>D] key to toggle between fractions/radicals and decimal numbers.
- Alternatively, press [SHIFT][=] instead of [=] to force display to be in decimal format.
- More permanently, press [SHIFT] [MODE] to access (SETUP) screen, then select [ 2:LineIO]

Mar 11, 2010 | Casio FX-115ES Scientific Calculator

Hello,

Since you bent on deactivating the very features that make your calculator so versatile and so powerful, here it is.

Press [SHIFT][MODE][2:LineIO] and you will see no more fractions, nor radicals etc. You asked for it.

Hope it helps.

Since you bent on deactivating the very features that make your calculator so versatile and so powerful, here it is.

Press [SHIFT][MODE][2:LineIO] and you will see no more fractions, nor radicals etc. You asked for it.

Hope it helps.

Oct 18, 2009 | Casio fx-300ES Calculator

Hello,

To convert fractions to decimals or decimals to fractions, you use the [S<->D] key. Each time you press the key the result is displayed in the other format.

Alternatively, If you multiply or divide two integer numbers put a decimal mark at the end of one of the numbers (any one). The result will be displayed in decimal format.

Hope it helps.

To convert fractions to decimals or decimals to fractions, you use the [S<->D] key. Each time you press the key the result is displayed in the other format.

Alternatively, If you multiply or divide two integer numbers put a decimal mark at the end of one of the numbers (any one). The result will be displayed in decimal format.

Hope it helps.

Jun 01, 2009 | Casio FX-115ES Scientific Calculator

it took me a while to figure it out too but i found out how. Put in, for example, 3 divided by 2. You get 3/2. Then press the button right above DEL. (it says S<=>D) and it will convert the fraction to a decimal. To change the number of decimal places shown, push SHIFT then SETUP then 6 then a number from 1-9 and that is how many decimal places will be shown.

Aug 29, 2008 | Casio FX-115ES Scientific Calculator

To have a mixed number, you would press the division bar

Say you would like the mixed number 2/3/5

You would simply press 2, division symbol, 3, division symbol, and 5

Say you would like the mixed number 2/3/5

You would simply press 2, division symbol, 3, division symbol, and 5

Jan 07, 2008 | Casio FX-300MS Calculator

You have to set how the calculator handles numbers. To do this follow these steps:
1. Press the 'MODE' button. This brings up the calculator's main settings page.
2. Scroll down until you reach a field titled 'Exact/Approx...'. This is the setting for how the calculator handles numbers, whether it will show the exact answer (which is usually in fraction format) or whether it will show an approximate number (which will be in decimal format).
3. Press the right arrow which will bring up the options for that setting. You must now choose between three ways of handling numbers:
-'1:AUTO' will determine which type of answer the calculator will give based on what numbers you want it to calculate (e.g. if you want an answer in decimal format just add a decimal somewhere in your problem).
-'2:EXACT' will automatically display all answers in either whole number format or in fraction format.
-'3:APPROXIMATE' will automatically display all answers in decimal format.
4. After you have selected one of those options pres enter one more time to get out of the 'MODE' dialogue and return to the 'HOME' screen. Now try a problem and see what happens.
Personally I like using 'AUTO' because then I don't have to keep returning to 'MODE' when I want either or.
Hope this helped, I had the same problem when I first started using the TI-89.

Sep 05, 2007 | Texas Instruments TI-89 Calculator

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