If you mean how to calculate your answer to scientific notation, then for example, if your answer in your calculator is
0.00004587
the you move the decimal place over til it passes the first number, in this case 4.
and because you moved it 5 places to the right, then you would write you answer
4.6 x 10-5 (10 to the negative 5)
if your answer was 458700000.0 then you move your decimal to the left and the answer would be 4.6 x 10+5 (10 to the positive 5)
Hope that helps!
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On most calculator there's a 'ENG' key
because some numbers are tooo big for the screen so the calculator puts it in scientific notation form
You find scientific notation in Excel under the Format - Number menu.
It is the use of scientific notation.
A calculator is faster.