Check out these websites to find cool and fun math games:

Ramo Games
Find hundreds of math games and puzzles on this website.

BBC KS1 Bitesize Math
Join Max and Molly and play fun math games together.

Cyberchase
This is a fun website based on PBS television's popular math cartoon Cyberchase. Have fun finding solutions to real-life situations.

Zula World
ZulaWorld is based on the award-winning PBS cartoon. Explore math, science and astronomy on ZulaWorld. Parents need to email their permission to join. Kids can only share their made-up "alien" names with others. Parents can monitor their kids' progress and receive weekly email reports. There is a free version.