Thanks, all, it will take me a while to carefully review all of these great recommendations, which is a "chore" that I will really enjoy.
What do you all think of this link - not formal enough?
http://www.ixl.com/math/practice/

My DD9 goes to a regular school during the year and a pull out at another school one day a week, DD5 goes to a regular preschool, so we are new to HS ideas.