DigiColor Binary Game

DigiColor has created two versions of their colorful binary counting toy. One small and one large, both plastic games are really cool. Colorful plastic balls travel down a binary tree and land in the appropriate bit bucket to represent the sum of the decimal numbers to the left of each toy. A good way to learn simple binary arithmetic, because four bit binary involves only the decimal numbers 0 -15 and the first four powers of 2.