• xtramath.org

- This site has a lot of leveled practice of math facts. Simply start an account for free and the site will take you through several pretests to pinpoint the level at which to start.
This site is also a good alternative to fast math.

• abcya.com

- This site has a lot of games. It is geared more for early elementary, but does have some games for upper elementary.

• mrnussbaum.com

- This site has a lot of good games. The students really enjoy it, but there is a lot of stuff on the site that sometimes makes it difficult to navigate.

• Mathplayground.com

-This site is not all math games,