Here are some great math links:

Tic Tac Toe

Math Baseball

Math Baseball-2 players

Power Football

Graphing-What's the point?

Geometry-Shape Surveyor.

How to find Prime Numbers-Sieve of Erastosthenes

Sodoku Puzzles

This website is a resource that goes with the textbook we 
use.There are quizzes and lessons online for each lesson in the 
book for grades 6, 7, 8, and Integrated Algebra.
Pearson Prentice Hall

Make your own flashcards to help you learn basic math facts!
Make Flashcards

Have fun playing Line Jumper while adding and subtracting 
Add & Subtract Integers

Here are some more super links to practice math skills. Have fun!
Portaportal Links

Other Resources

Here are some other resources that you can't find on the internet:     School 
Library     Local Public Library