Use this flip chart to send Subtraction facts to each student's ActiVote or ActivExpression. This flip chart has basic subtraction facts beginning with 2-1. The facts are "leveled" meaning that students must complete level 1 facts (all -1) before moving to level 2 facts (-2). The questions are set at random, meaning each student's ActiVote or ActivExpression will have a different math fact on it. There are over 150 facts on this flipchart. When students answer, the teacher can see a running bar graph of their answers and save the results.