Great Advice, he has a point. Otherwise, study papers you've done throughout the year for maths, (should be atleast 2, and possibly class tests if you have a good teacher), and the notes he/she gave you a week before the test, study those too, because he gave them to you for a reason.
Remember things you've done from the begining of the year, throughout the yeat etcetera, because they have a way of 'popping out outta no where'.
yeahp, they cna also test u on anything u done like throughout the prelims, so beware aiight.