My Casio fx-95MS Wont come off scientific notation i need help

Go to Casio Support webpage:
http://support.casio.com/en/manual/manualfile.php?cid=004009077
Download or read Manual online.

Your answer is 6.7*10^18. That requires 19 places on the display: There are not enough places to write that. Besides, calculators are deigned to use Scientific Notation whenever the result to be displayed is too large or too small.
If you enjoy writing zeros, convert by hand the scientific notation into what you call long number.

3 1 1

The "problem" is not how to calculate with numbers expressed in Scientific Notation but how to enter a number given to you in scientific notation. Once the number is entered you do not have to do anything special. If you have to multiply it use the (x) button. to add it use the + button, etc.

How to enter a number in scientific notation.

Type in the mantissa (example 6.022)
Press the [X10^x] at the bottom of keypad.
Enter the exponent (example 23)
with this example you will have entered Avogadro's number 6.022x10^23
Other example
1.6 [X10^x] (-) 19 enters the electron charge in Coulombs. The exponent is negative that is why you press the change sign key (-).

Please press the Mode button on your calculator repeatedly till you get the following screen
Fix Sci Norm
1 2 3

Press 3 from your keypad and the screen will change to
Norm 1~2?

Press 1 from your keypad and your calculator will be normal again i.e out of scientific notation mode.

For converting answer in to scientific notation do the following steps.

1.click shift key after that press mode key next to on button.

2.From the menu that is displayed in the screen press 7 for displaying answer in scientific notation.

Thank you.

Press the [SHIFT][MODE] to access the (SETUP) screen. -See the screen capture below. Press [7:Sci] to select the output display format to be Scientific.
You will then be prompted to key in a number between 0 and 9 to choose the number of decimal digits.

If you do not want fractions nor radicals set the default Input/Output format to LineIO.
To do so press [SHIFT][MODE][2:LineIO]. After that perform the steps given above to select Scientific format for the output.

Press SHIFT MATH 2 to switch to the LineIO mode. You won't see fractions then. However, if magnitude of the number is too large or too small, the calculator will switch to scientific notation in order to fit into the display.

This can be done by setting the calculator to the right MODE. Press MODE 9 to turn on scientific notation. For example, compute 1 / 200 = and you will see 5 with a -03 exponent in the upper right. Press MODE 9 again and it will be displayed .005

To enter numbers in scientific notation use the EXP at the bottom. To enter .005, press 5 then EXP then +/- then 3. You will see it displayed. Then you can perform calculations with this entered number.

Hello,
Press [SHIFT][MODE][7:Sci]. Select the number of digits in the number.
In the exemples below, the Zeros are place holders.
0: 10 digits 0.000000000x10^0
1: 1 digit 0[x]10^0
2: 2 digits 0.0x10^0
...
9: 9 digits 0.00000000x10^0
Hope it helps