Players have fun while building mastery of all math facts through 12. Practice builds speed and reinforces math concepts. Game adapts for increasing skill. Traditional 5x5" grid format can be played six ways to meet the needs of learners of all abilities. Fun for large or small group use. Set includes: 36 playing cards, over 700 chips, caller's mat and cards, and a sturdy storage box. Ideal for teaching: Grades 3-8, ages 8 to 13.