Our 100-Bead Wood Abacus Counting Toy Comes With 100 Wooden Sticks And 110 Math Cards, It'S A Hands-On, Early Math Manipulative Which Teaches Counting, Addition And Subtraction.FeaturesClassic Abacus Learning Toy: Old Good Things Never Change. The Abacus Has Been A Vital Math Tool For Centuries. ItS..