ABCya
Baseball Math Play a math baseball game to practice facts (1-8)
Cool Math Math games of all kinds
Create A Graph Create your own graph
IXL
Khan Academy Excellent video clips explaining how to do just about everything
Math Nook
Math Playground
Moby Max
Money Flashcards Practice with counting money (1-6)
National Library of Virtual Manipulatives Grades Pre-K to 12. Highly recommended by our teachers.
Problem Solving Symbaloo
Soccer Shootout Play a math soccer game to practice facts (1-8)
Soft Schools
Sum Dog
That Quiz Math activities (K-12)
Tutput