Question

What is 0.00732 written in scientific notation

Answer 1

Place a decimal point between the 7 and 3 (the first nonzero digits) to get 7.32

Now ask yourself: how many times must I move the decimal to get back to 0.00732?

The answer is 3 spots to the left, so that means that the exponent is -3 and that

\[\Large 0.00732 = 7.32 \times 10^{-3}\]