Teach fractional relationships or use with existing kits requiring a variety of fractions. To teach addition, have students roll two dice and add up the fractions. Excellent for elementary and home school. Each set features six 5/8 inch dice including 1/2, 1/3, 1/4, 1/5, 1/6, 1/8 and 1/dev42. Sold as a pack of 12 Fraction Dice Sets for a total of 72 dice.