Answer
$0.00635= 6.35 \times 10^{-3}$
Work Step by Step
$ 0.00635 $
Step 1: Move the decimal point until the number is between 1 and 10.
Step 2: The decimal point is moved 3 places and the original number is less than 1, so the count is -3.
Step 3:
The scientific notation is:
$0.00635= 6.35 \times 10^{-3}$