I used two study guides for College Math:

> Peterson's CLEP Success - it may be available for free online, especially for military people.

> Princeton Review's Cracking the CLEP

These two books cover all of the five CLEP General exams, but that's what I used.

I found the test to be challenging, but I did OK. It was harder than some other CLEP tests that I've taken. Some tests seem to take only an hour or two a day for a week to study. This test may take longer. Even though the Princeton Review shows you some test-taking shortcuts, you should know the material. The Peterson's book will show you the material that you need to know - and do the problems. Peterson's is usually too hard relative to the test, but in math, you do need to know the correct answer.