Question about Casio FX-300MS Calculator

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Trying to calculate exponents on my fx-300ms example: 3.2 X 10 to the -7 power

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If you want to get really basic and not mess around with a lot of fancy buttons and whatnot, simply put in 3.2 X 10 then push the ^ button and then (-)7. Over to the left, the third button down should look like ( - ), push that and then the 7 to avoid all the parethesis mistakes.

Posted on Oct 16, 2010


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How do you put in radicals in the casio fx-300ms

Use the square root key. For roots of higher index, use the xRoot key; the shifted function of the Y^x or [^] with exponent 1/3 for cube root, 1/4 for 4th root, or 1/n for the n-th root.

Jul 14, 2014 | Casio FX-300MS Calculator

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How do you solve radicals on the casio fx-300ms

To calculate radicals use the square root key. For higher index roots use [SHIFT][X^y]. You need to enter the index before pressing the key. Or use the general power key but with exponent (1/n) where n is the index of the root.

Jul 14, 2014 | Casio FX-300MS Calculator

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Floating point number into binary in fx-991MS

I checked in the manual and found that this calculator does not support Base-N calculations. On the FX-991ES Plus, which has a Base-N mode, fractions , exponents, and other floating points are not supported. The non-integer part is chopped off.


Jan 23, 2014 | Casio FX-300MS Calculator

1 Answer


Use the EXP button. For example. 4(EXP)-2. Or there is a ^ located next to the x squared buttom and before the log button

May 15, 2010 | Casio FX-300MS Calculator

1 Answer


Hi a ritha,
If you are talking about the FX-300MS calculator, the ^ button should be there just below the large "Replay" button, on the immediate next row, slightly to the right. After pressing that, write "-2" withing brackets, like this (-2). The * function is in the number pad below, as you know. If your calculator really doesn't have the ^ button below the Replay button, it is probably faulty. Go exchange it for a new one.

Mar 28, 2010 | Casio FX-300MS Calculator

1 Answer

Adding Exponents on a Casio fx-300MS

The calculator applies the rules during the internal calculations. But all it shows you is the (final) result. It does not keep track of what exponents you used to get to the result. It is not capable of doing symbolic manipulations.
Hope you are not too disappointed.

Apr 22, 2009 | Casio FX-300MS Calculator

1 Answer


You would enter it exactly as you just did and you will get a correct answer. The brackets are not necessary for that example with this calculator, however, I think it is still good practice to use brackets to minimize your room for error.

Apr 11, 2009 | Casio FX-300MS Calculator

2 Answers


the Xy button, 10 Xy 2 = 100 (10 x 10)

to do a neg exp you have two options, one use brackets if calculator has them.....

10 Xy (-2) = 0.01

or two inverse your number, ie: make 10 into 1/10th, use fraction entry on calculator.

1/10 Xy 2 = 10 Xy (-2) = 0.01

May 31, 2008 | Casio FX-300MS Calculator

1 Answer

Fractional powers

use the "carrot" button, ^. Type in 4^.5 and you get 2. If you are going to use fractions, use the division bar and parenthesis and not the fraction key. Example 4^(1/2) = 2

Apr 27, 2008 | Casio FX-300MS Calculator

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