text: I agree that formulas are important and that you also need to know how to use them. Ideally you should learn the formulas and do practice problems that are like the ones that might be on the test. Also, online resources help if your notes aren't good or if you don't have any. I don't know what level of math you are taking, but here is a site that has links to study guides for many different levels of math. Good Luck!!!