http://accuplacerpractice.collegeboard.org *USE THE CLASSIC VIEW
www.math.com (Pre-algebra and then Algebra)
http://mathforum.org//dr.math/ (At Dr. Math see middle school for pre-algebra review)
http://iccoc.edready.org You create your own login and password. Click get started, take the ICCOC math test and it should take an hour or less. This will then create a custom plan for you to increase your math skills complete with videos, examples, and practice. This will give you a good idea about where you are at with your math skills. This is free and you can go at your own pace!