Four interactive practice sets, 10 problems each of addition equations, subtraction equations, multiplication equations and division equations. This is way of practicing that has students moving! The activity is self-checking. Students can work independently or in pairs as they solve problems around the room or down the hallway. My students love wall problems, they love the movement and they love the puzzle aspect of the problems. I tell them algebra is like a puzzle to solve, and this activity gets them excited about solving it.