I study really hard for days before my math exam and do lots of practice questions. I get really good at it, but as soon as my teacher hands me the question paper I go blank. What should I do?

You are probably getting stressed and scared when the teacher hands out the test. There are many things you can do. First of all, don't cram all the material into your head a few days before the test. Try to study a bit each night for a few weeks before the test. Then, when the test comes, calm yourself down. Take a few deep breaths and imagine something that will make you happy, but don't get overly distracted. Just imagine that you are doing your homework, and not taking an exam. If you imagine hard enough, the stress will go away and you will remember everything you had studied.