# How do you convert 2.14 x 10^-4 into standard form?

Aug 17, 2015

The $- 4$ means you have to move the decimal point $4$ to the left.

#### Explanation:

So we first add 4 zeroes in the front:
$= 00002.14 \cdot {10}^{- 4}$ which is no real change.

Then we move the decimal point 4 to the left:
$= 0.000214$

You can also memorise that there will be 4 zeroes in front of the original number, one of which be in front of the decimal point.