[Lhiistyssdds]

I'm out of uni now, and finally working. I was thinking, though, that I don't want to lose all my math skills that I spent so long working on over HS and uni... Is there some place that I can find like daily or weekly problems to keep my practice up on calc, statistics, physics (even though it's not math), etc.??? I'd rather not be one of those people that used to know a lot of math, but forgot it all by the time it would be useful to teach my kid someday...