Your child will easily learn numbers 1-20 with this quality wooden puzzle. Hape's Numbers 1-20 Early Math Puzzle introduces numbers from 1 to 20, as well as 3 mathematical signs: plus, minus, and equals. With this number puzzle children can not only count, learn numerical order, but also create and solve first math problems. The 23 brightly colored chunky pieces of this number learning puzzle can easily stand along on any smooth surface. Counting, addition, subtraction, color coordination, puzzle assembly - with the Numbers 1-20 Early Math Puzzle learning possibilities are really numerous. This kids math puzzle from Educational Toys Planet is well-made from quality wood and meets all US toy safety regulations.