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 5 x 5 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. Ages 8-13.