Well, to do math you need to know what calculations you need to do and for a faster calculation you should do them on a calculator.
The only way to get good at math fast is to practice.
Math...which was done by the Aztecs.
fast math . com
i am not in middle school but we use fast math you have to have your user name and a lunch pin for when we use fast math but yours might be differen t
Use A Calculator,"
practice
9568822
I'm assuming that you mean get used to math so you can do it fast. This may or may not be an easy goal for you but the only answer is Practice.
math that is done in your head
He said E=MC2 He must have done math! :)
The more you practice, the faster you get.