The GMAT Quantitative Section — Overview, Tips, Tutorials and Practice Questions

From this page you can access detailed information about the GMAT Quantitative section. You can also review test-taking tips for handling both of the basic question formats you'll encounter during this exam section: Problem Solving and Data Sufficiency.

From this page you can also attempt a variety of GMAT-style practice questions embracing all of the broad skill and subject areas that the Quantitative section covers. For further insight into the GMAT Quantitative section you can explore two math tutorials from this site's tutorial series.

Widely recommended for GMAT prep:

GMAT book    The Official Guide for GMAT Review, 13th edition
Graduate Management Admission Council

From the test makers (GMAC), this book provides over 900 questions used on actual GMAT exams and keyed Web access to 50 exam questions for the new Integrated Reasoning section.