Here is the link to the addition website:
http://www.fun4thebrain.com/addition.html
http://www.fun4thebrain.com/addition.html
http://www.bbc.co.uk/schools/typing/levels/level1.shtml
http://www.netrover.com/~kingskid/sightword/dolchgames.htm
I use this website daily in my classroom.