This page features an interactive online math game that contains zombies and monsters ready to eat you on the way. The focus is for students to learn how to subtract small numbers. It is a suitable game for kindergarten, 1st, 2nd and 3rd grade. Adults will also love playing this game. The zombie theme is a great Halloween game for students both at home or in school. Have fun learning addition. For kindergarten, first grade, second grade, third grade students.