Sumdog is a source of free math games for kids to play at home or at school.
Sumdog's games cover a hundred numeracy topics organized into ten levels of increasing difficulty. Most of them are multiplayer games, so kids can play against thousands of students around the world.
Teachers who sign up with Sumdog can get free accounts for their students which allow kids to track their progress. When beginning a game, students can select which topics to practice.
Watch a video introduction to Sumdog
There are three access levels to Sumdog: No Account, Free Account, and Subscription. All offer free individual and multiplayer games. The free account includes several features useful to teachers such as creating competitions and challenges for students. The $160 (US) annual subscription provides detailed student and class reporting.
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