Math Mayhem gives kids practice in basic math operations by matching them up against other players on the Internet. Choose a number operation - addition, subtraction, multiplication and division - then read the instructions and tips while the game lines up other contestants. The more questions you answer correctly in a row, the higher your total score. Addition and subtraction include 1-digit and 2-digit numbers. Multiplication and division involve operations for numbers 0-11. This is a free game. Other games on the LearningPlanet website are available for free or for a subscription fee.