How do you write #0.00635# in scientific notation?
Assuming we are evaluating this number to 3 significant digits
1) Use the notation X.YZ
ony use the significant numbers in the sequence (i.e don't use any of the zeros before)
So for 3 sig figs, the number is 6.35
2) Than multiply the power of however many place holders there are
the number 0.00635 is to the power 3 place holders
Therefore the final answer in scientific notation is
If the number is a decimal, move the decimal point backwards until you have the first whole number in front of the decimal point. Each 0 is 10, when you move the decimal point backwards, you are taking the 10 and multiplying it by a negative exponent.