also, basic test taking 101/class prep.
You've now seen how your professor creates tests. Compare the problems on the test to the problems he went over in class and that were assigned. Notice the similarities and differences and you should be golden for the next one.
The professor gives you a syllabus of what he's going to be covering. Come prepared to lecture - i.e. preview/read the section the night before. Try problems on your own before the professor goes over it. When the prof lectures...that lecture should fill in any missing gaps, it shouldn't be the first time you're seeing the material. Do the assigned problems ASAP, while everything is still fresh in your memory.
When taking notes, if you have a question jot it down immediately somewhere.
office hours, office hours, office hours, office hours. Get to know your professors and good things will happen. Come prepared with questions. Even in a large beginning freshman class - you get to know your professor and come grade time if you are on the bubble and 'remind' the professor how much you tried (by coming in all the time) they'll more than likely bump your grade.
These simple tips will make your life significantly easier.