10 ptz! S.A.T's?? What do i need to......?

Hey I just took a PSAT yesterday and i noticed on it that the questions weren't like hard algebra/ writing or reading. It was simply the basic stuff like 4y x 3X=? Or improve these sentences. Is it like this for the real SAT's? To prepare for the real thing what do i need to learn really in each subject?? please and thanks!