# What's .012 in scientific notation?

$0.012 = 1.2 \times {10}^{- 2}$
$0.012$ written in scientific notation would be $1.2 \times {10}^{- 2}$. $1.2$ is called the coefficient and can only have a single digit of 1-9 inclusive in front of the decimal. The exponent on the base 10 is $- 2$ because if you were to expand this number you would move the decimal back to the left two places.