A pre-algebra books are will probably give you a good idea of topics. Your probably need to ask other people in your school since these tests are not necessary uniform.
1) Fractions -- anything and everything to do with fractions.
2) Negative Numbers
3) Abstract Thinking
The test in my school district puts a heavy emphasis on how the students can handle two & three step problems. Two step problems are where you need to more than one technique to solve the problem. Only part of our test is multiple choice, because the math coordinator is looking for kids who can show they can think abstractly rather than just know the tricks for solving multiple choice tests.