Check out the materials I prepared for an 8-week SAT Math Prep Course.
Most of the mathematics concepts on the SAT (Scholastic Aptitude Test)
are covered thoroughly in my Algebra I, Geometry, and Algebra II online materials.
This page lists the SAT mathematics content, and then provides links to my web exercises covering the material.
Of course, concepts are often covered in many different exercises; I have tried to provide the most relevant links.
Here is the Collegeboard website used to determine the SAT mathematics content:
SAT Mathematics Review
Most students take the SAT in the spring term of their junior year and again in the fall term of their senior year of high school.