Question

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

Answer 1

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*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.