This activity is ready to print for students - no additional prep needed. This Halloween: Math Mystery is an engaging way to help students practice skills learned in middle school math. Students discover the culprit to a crime by eliminating suspects using math skills related to integers, proportions, statistics, percents, graphs, rates, and equations. There is no prep needed for this activity. There is an option to remove clues if students are not yet ready for specific math skills. Introduct