Best math game for kids, make 24!
http://www.4nums.com/challenge/
http://www.4nums.com/kids/
http://www.4nums.com/live/
https://gameof24.com
http://www.gameppoint.com/
http://www.thebestofflash.com/
seppo.karjalainen
http://2048-puzzle.blogspot.com/
http://xubala.com/