Question

How do you write `5.3 times 10^-3` in standard from?

Answer 1

You should get `0.0053`

Explanation:

Observe the `10^-3`: it tells you that you have to "move" the dot `3` places to the left (`-` sign) using zeros to fill the gaps:
So you get:
`5.3xx10^-3`
`0.53` first movement;
`0.053` second movement;
`0.0053` third movement.