Beestar is cool!
So happy to share with you guys!
We used to use Kumon. But DD's teacher told me a website www.beestar.org. The worksheets focus on problem solving and word problems. It really helps DD use her brains much more than kumon and the math worksheet is free. DD loves it very much! Since the worksheets are online, DD does it as play games and I also don't have to drive her to kumon center, saving my $$ and time!