# How do you write 0.005 in scientific notation?

Mar 14, 2018

$5 \cdot {10}^{-} 3$
Since the decimal was moved three places to the right (the negative direction), the exponent is $- 3$.
Notice that ${10}^{-} 3$ equals $\frac{1}{1000}$ or $0.001$
so multiplying 5 by either of these numbers equals $0.005$