There are 10 questions, and students have 2 minutes per question. This is always SUPER effective when I use this... students choose their first partner, then after two min, have to switch questions AND partners. It gets them up and moving, and working with different people (of their choice, so they like it) and they are on task, b/c 2 min is NOT much time. I often tell them if they finish early, to go back and check old problems. Partners have to sign each others papers. NO answer key included, sorry!