A math skills and luck game for any number of players. High quality hardwood construction with wood burned numbers that will last a lifetime. This #1-#48 version is a versatile box that can also be used to play 4 different versions of Shut Box. It is a terrific math learning game. The 1-48 box can be used to play 4 versions of Shut Box: #1-9 using just addition- pre-K to grade 2 (ages 4+) #1-12 using addition multiplication- grades 3 to 5 (ages 9+) #1-24 using addition & multiplication with simple complex equations- grades 4 to 7 (ages 10+) #1-48 using all 4 math operations with complex equations (uses 4 dice) - grades 5 to 10 (ages 11+) this #1-48 box was created by CreativeCrafthouse with rules written by Dave Janelle. Teachers/Educators may be able to modify the rules to fit the learning needs of their students. Instructions uncluded