My casio fx-115ES is stuck in scientific notation

I have done the calculation using the the shortcut key [x10^X] to enter the exponent,and I got the correct result.
I also did the calculation by explicitly typing the 10^10 factor and I obtained the correct result.
The syntax error may come from your using the minus - sign for subtraction rather that the change sign key (-)

the best option would be to reset your calculator. there is a small panel on the back with a screw. open that up and take out the battery. press the on button to ensure you have drained the power. put the battery back in and it should be reset and working normally

Press SHIFT MODE and then 8 for Normal or 6 for Fixed decimal notation.

Press SHIFT MODE. You can select either 6 for Fixed-decimal notation or 8 for Normal notation.

Press SHIFT [SETUP]. You can select FIX for fixed-decimal or NORM for normal display. For FIX the calculator will prompt for the number of digits. NORM gives you two choices: 1 will display numbers of magnitude less than 10E-2 in scientific notation, 2 won't switch to scientific notation until the magnitude drops below 10E-9.

Press SHIFT MODE 7 and it will prompt for the number of digits.

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 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.

Press [SHIFT][MODE][6:FIX]. You are then prompted to enter a number between 0 and 9. The number you enter fixes the number of decimal digits your results will have. If you press 0 all numbers will be rounded. Setting two or three decimal digits should be reasonable for most situations.

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