To prepare for this, try some rapid problem solving. Or, better yet, study with a student who is doing slightly better than you in the course. Each of you can copy a problem and then race to see who solves it first. Do this for at least 20 or 30 minutes for at least three nights before the test. Rather, they simulate game conditions for part of their practice.
Most students do.
The best way to prepare for the test is to simulate it. Devise a system for practicing rapid problem solving as part of your review for the test. Another silly mistake is not taking time to read each test question thoroughly. Then, simulate a test. Have a friend predict questions and ask you to answer them without referring to your notes.