McGraw-Hill's Conquering the ACT Math and Science, 2nd Edition

If you're struggling with ACT math or science, you can rest easy--the revised and updated edition of is here. Written by an expert ACT instructor, this book offers intensive review for every type of math and science question on the GMAT. Within each topic, solved problems of gradually increasing difficulty help you build your problem-solving skills. is packed with step-by-step explanations and in-depth practice. You'll be able to test and flex your skills through the books' exercises--and you can get more practice online at MHPracticePlus.com.