How do you write 0.00000000316 in standard notation?

May 29, 2018

$0.00000000316$ is in standard notation.

To write this number in scientific notation we must move the decimal point 9 places to the right so the exponent for the 10s term will be negative:

$0.00000000316 = 3.16 \times {10}^{-} 9$