Question about Casio FX-300MS Calculator

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Adding Exponents on a Casio fx-300MS

Can you use this calculator to add exponents?

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  • sean_nijjar May 11, 2010

    If you have the base and the exponent and you want to add it to another pair, al you do is enter it like a standard addition equation.

    so for example it would be 5^3 + 3^2 = Ans.
    Otherwise, you will have to clarify the purpose. DO you mean you must find a common base? and then find the exponential value to keep the evalutation equivalent to the original one?


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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.

Posted on Sep 25, 2009

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1 Answer

What is most common power problem?

If by power, you mean exponents, there are several rules.

Multiplication with the same base - add the exponents
Division with the same base - subtract the exponents
Exponent to an exponent - multiply the exponents
Negative exponent - 1 over the same number to the positive exponent
Zero exponent - anything to the exponent 0 is 1

Good luck,


Jan 26, 2016 | Casio ClassPad 300 Calculator

1 Answer

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

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

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.

Oct 16, 2010 | 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

How do you perform calculations with large exponents? 2^2n/sq root of 2*pi*n when n=300

You do them the same way as you would for any exponent, except that you calculator has a limited capacity. If results exceeds 10^100 calculator gives an overflow error.
In case you are interested, the result is 6.75821x10^(176). That is clearly more than you calculator can handle. And don't go calculating n! for n larger or equal to 70.
Hope it helps.

Oct 01, 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

4 Answers

I cant figure out how to put exponents in to my calculator

For 5 to the 6th power, type
5 ^ 6 =
You should get 15625

Mar 24, 2009 | Casio FX-300W Plus Calculator

1 Answer

I cant find the XY or the ^ button on my calculator to use exponents, anyone know?

It seems very hard to miss. In the middle of the third row.


Mar 08, 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

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