Prepare for the math section. The math section of the GMAT involves algebra, geometry and basic arithmetic. Geometry is mostly angles and perimeters of shapes using basic trigonometry functions. Algebra sections are linear equations. An example of an equation on the GMAT:
10x + 2 = 5x + 12
You also need to know roots and radicals, but there are no polynomials or binomials. Simplifying equations is a main part of the GMAT, so practicing equations from old textbooks is an ideal way to learn the math involved. If you have old tests from professors, make copies and practice solving equations. Purchase a math workbook and complete a section a day. Solve a few problems from the previous day to fortify what you've learned.
The math section consists of 37 questions timed at 75 minutes. As your test date gets closer, take practice tests in timed environments to improve testing under stressful environments.
Prepare for the verbal section. The verbal section of the GMAT is a mixture of vocabulary, analytical thinking, completion of sentences and reading comprehension. The best way to prepare for this section is to use vocabulary flash cards. Learn approximately 10-20 new words every day, then take practice tests that fortify your knowledge of how these words are used. Increase comprehension skills by reading passages in business magazines or newspapers.
Prepare for the analytical writing section. This section is one of the most difficult if writing does not come naturally. This section consists of two writing tests--analysis of an argument and the analysis of an issue. Understanding the question, drafting ideas, and writing short paragraphs highlighting important issues in the text help you prepare for the writing section of the GMAT.