Getting ready for the ACT? Need some support with the math? ACT Math: The Unofficial Prep Guide may be just what you need. ACT Math: The Unofficial Prep Guide contains 60 questions -- a whole math section -- with a full, reader-friendly explanation for each one. The questions are based on an official ACT practice test, so they cover the full range of ACT topics and difficulty. Strategies and full explanations are included. Answers are highlighted. Possible pitfalls are pointed out.