Students take turns rolling a connecting cube onto a number mat and adding that number of cubes to their tower. The first student to make a tower of 10 wins. If a student makes a tower with more than 10 cubes, they use the extra cubes to begin a new tower.

Students take turns rolling a connecting cube onto a number mat and adding that number of cubes to their tower. The first student to make a tower of 20 wins. If a student makes a tower with more than 20 cubes, they use the extra cubes to begin a new tower.