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How to enter 2.5x10 (exponent 8)/2.25 x10 (exponent5)

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Key sequence is:

2.5
X
8
2nd
10 to the power x
/
2.25
X
5
2nd
10 to the power x
=

Unless you mean (2.5x10 (exponent 8))/(2.25 x10 (exponent5)), in which case you need to change the last "X" in the sequence to "/", or stick the appropriate brackets into the sequence.

Note that exponents are like trig functions, enter value first, then the operator, so 10 (exponent 8) is entered as "8", "2nd", "10 to power x", just like sin 60 is entered "60", "SIN"

Posted on Dec 31, 2008

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I need step by step instructions on using Casio fx-115ES ee or exp burron.


The equivalent of the EE or EXP button on the Casio Fx-115ES is marked as x10^X. It is located at the bottom right of the key pad left of the = key.
To enter the power of 10 in a number written in scientific notation, you press the x10^X button followed by the exponent. If the exponent is negative you press the change sign key first [(-)] , then the one or 2 digits in the exponent.
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Since the calculator has the physical constants (the FX-991ES definititely has them)
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  2. [SHIFT ][7] to open the constants catalog,
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I need help calculating how many protons are in 1gram


The equivalent od the EE or EXP button on the Casio Fx-115ES is marked as x10^X. It is located at the bottom right of the key pad left of the = key.
To enter the power of 10 in a number written in scientific notation, you press the x10^X button followed by the exponent. If the exponent is negative you press the change sign key first [(-)] , then the one or 2 digits in the exponent.
Example Enter the mass of the proton m_p in kilograms
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I need to know how to divide, mutiply, add, and substract in scienctific notation on my Casio fx-300ES


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Type in the mantissa (example 6.022)
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155b19e.jpg
In you case, to enter x10^ you press the [EE] key (no 10 is entered) the sign of the exponent and the value of exponent.

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