Once you get through basic algebra try Exeter's problem sets. I've just started going through them now and it seems pretty fun and well integrated. They even ha

Once you get through basic algebra try Exeter's problem sets. I've just started going through them now and it seems pretty fun and well integrated. They even have discrete math! http://www.exeter.edu/academics/84_9408.aspx http://www.exeter.edu/academics/84_9408.aspx