Koplow Games Math Numbers Dice Set is a fun, hands-on way for students to learn basic math skills. Children learn more effectively when it is reinforced through play. Perfect for individual play, in small groups or as a classroom making these dice a great educational resource. Build money counting and exchange skills, and create games using these money dice. Dice measure 16mm (5/8"). Each set includes 10 dice. Sold as a 6 sets for a total of 60 dice.