I have always had test nerves, so I will tell you what has helped me. First, of all don't cram for the test, but if it is something like history or science look at the review questions at the end of the chapter your test is on. Answer those questions by looking them up in the book if you don't know the answers. Second, when you take your test I know it feels like everyone in the room knows the answers. They don't, so take a deep breath and read the questions again. If you have to do this three or four times. Always remember that in mutilable choice questions that 2 are always wrong, one is almost wrong, and one is right. Eliminate the two wrong options and that only leaves two. Pick the BEST of those two. If it is a reading test and you can write on the test for each paragraph underline the main idea and circle the details. You can use this to answer the questions. Remember keep your cool.