Remedial classes address deficiencies in your academic background to prepare you for college classes. This preparation involves teaching you topics in mathematics that you may not have been able to master in high school. Students who skip math in their senior year of high school will need a remedial math class to refresh their skills. Taking a summer math course at a community college will help you gain back these math skills.
According to a study done by the National Center for Postsecondary Research (NCPR) published in 2006, students who do remedial work are more likely to stay in college in comparison to students with similar test scores and backgrounds who were not required to take the remedial courses. The study also shows that students who take remedial courses are more likely to transfer to a higher-level college and to complete a bachelor's degree.
In 2001, the California State University system expelled "more than 2,200 students--for failing to master basic English and math skills," according to the NCPR study. Remedial courses could help you avoid this situation.