Can someone tell me why $\displaystyle 0.06^2$ is equal to $\displaystyle 0.0036$ I don't get why is isn't just $\displaystyle 0.36$
Consider your decimal in terms of fractions instead might make the case clearer.
$\displaystyle 0.06^2 = (\frac{6}{100})^2 = \frac{6^2}{100^2} = \frac{36}{10000} = 0.0036$
On the other hand
$\displaystyle \frac{6^2}{100} = 0.36$