Let your students practice while having fun with this engaging, no-prep, and self-checking adding and subtracting polynomials mystery picture activity. This pixel art activity will be a great way to review your lesson. Students will solve 20 problems. As they correctly answer the questions a mystery picture will be revealed. A printable version of the questions is also included.Perfect for:practicing,homework,reviewing material,an emergency substitute lesson plan!Watch the video preview to see