I created this review game for my 1st Grade students to review concepts taught in Topic 6, Subtraction Facts to 20, in the enVisionMATH series. I used Qwizdom Response System remotes with my students. If you don't have a classroom response system, you can use buzzers, or have students hold up fingers for their choice. For example, choice B would be 2 fingers. Hope you and your students enjoy this review!