# How do you write 0.005 in scientific notation?

Mar 14, 2018

$5 \cdot {10}^{-} 3$

#### Explanation:

Scientific notation always starts with the first non-zero digit, then a decimal point.
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 $0.005$