This is a set of 13 different add em' up math games for building fluency and number sense by constructing the numbers 10, 15, 20, 25, 50, 75, or 100. Some of the games require one die and others require two. There are three different variations for the numbers 50, 75, and 100. The variations require one die, taking turns with die, or both dice each turn. These are great to use with tutors, centers, or a math game day. All you need are dice!