Exam-taking techniques

What are your preferred methods for taking mathematics and science tests and examinations?
What is the speed at which you do your test problems? Do you try to speed up your thinking processes so that you think extremely fast or do you just proceed at a normal pace? And do you concentrate or focus very intently at the problems and try to visualise the problems in your head? Thanks.

Learn your shit, know WHY everything is done - know how to derive all the formulas you will need.

You shouldn't ever have to read your cheat sheet/ formula sheet to answer a question. You need to know the formula you need and only look at the sheet to verify that you wrote it down.

Do LOTS of practice.

Most importantly start studying weeks before your exam.

Sleep - well if you know your shit then sleep is irrelevant (you'll probably lose the bonus, thinky thinky marks though). If you stay up all night craming, make sure to focus on formulas and how to solving methodology (although to be honest this rarely works)

Don't cheat, even if you know dick all. Its not worth it.