This is a 16 problem worksheet activity that has students adding, subtracting, and multiplying matrices. The goal is to solve the problem, cut a piece out of a puzzle, and put it on the blank grid. For example, problem 1 may read:[3 9] + [6 -2], where the answer would be [9 7]. You would put the problem 1 card onto the grid where the lettered answer lies. This activity uses negatives is great to use as a classwork activity or even a station! I originally used this as an assessment tool at the end of class one day! Answer key included!!