Motivate students with these 10 sided double dice. The options include rolling addends or factors 0-9 to practice all basic facts. These dice can also be used to roll numbers 0-99 where the inside die generates the ones and the outside die generates tens. Decimals .00-.99 can be generated in the same fashion. The dice can also be used for fractions where the inside die is the numerator and the outside die is the denominator. Sold in packages of 8.