In addition, though students naturally should focus on the difficult questions, especially if they are high scoring, all students should first ensure a mastery of the basic foundations of Pre-Algebra and Elementary Algebra, which combined make up about 35 to 45% of the entire test. Keep in mind that just because a question is marked as “Pre-Algebra” or “Elementary” Algebra does not mean it will necessarily be easy, and these questions should not be underestimated as you prepare for the ACT.