Students practice using the midpoint formula in two of these puzzles and the distance formula in the other two puzzles. Puzzles have 2 levels for differentiation in the classroom and answer keys are included for all. In the simpler level, the outside edges are blank, so if students are having difficulty, have them arrange the pieces so the blank sides are on the outside. In the more challenging level, the edges have additional problems/answers in the border to make solving a little more difficult. Set includes 4 different puzzles with 2 different levels of difficulty for students to practice using midpoint and distance formulas. You can use the puzzles on different days, at stations or give the struggling students the simpler variation. I keep a puzzle or two on my table for students who finish early.