Develop competence in adding, subtracting, multiplying, and dividing integers, the foundation for success in algebra. Flexibility allows practice with any one of the basic operations or all four in combination. Players earn points for correct answers; the first with 30 points wins. The chance for bonus points adds interest. Four activity masters offer patterns and a number line model to guide players in discovering and understanding the rules of signs. For 2-4 players.Grades 6 and Up