Probability, statistics, permutations, and combinations.
GMAC releases a free "starter kit" PDF. It doesn't have the whole book, but it has 100+ real retired math questions. Real questions > Nova's simulated questions. gmat math bible novapdf
Nova’s GMAT Math Bible is a robust, well-rounded resource that deserves a spot in your study arsenal. By focusing on fundamental understanding and efficient problem-solving strategies, it prepares you to handle the toughest questions on the GMAT. Whether you are struggling with basic arithmetic or looking to perfect your Data Sufficiency skills, this bible is a reliable guide to boosting your quant score. Probability, statistics, permutations, and combinations
When working through the practice sets in your PDF reader, set a timer. Aim for an average of two minutes per question to accurately mimic the pressure of the real exam environment. Real questions > Nova's simulated questions
The Math Bible is organized to help you conquer the specific structure of the test:
A static book or PDF cannot perfectly replicate the computer-adaptive nature of the real exam environment. How to Maximize Your Preparation