FunBrain.com: Math Arcade

The arcade is a series of 25 games in which students solve math problems to advance.  At the beginning, the student selects gender and grade level (1-8).  The difficulty of the problems is geared to the grade selected.  If the student repeatedly loses, the problems become easier.  As the students advance they receive a new password so they can come back to the arcade at a later time to continue play.

While the arcade combines math and video games, learning the games and navigating the board requires practice and guidance at the lower levels.   There are pop-up advertiserments between games.