Looking for a fun and engaging digital math activity with a Pi Day theme? This mystery pixel art on calculating tax, tip, discounts, and commission is the perfect no-prep way to keep your students practicing key math skills while enjoying a self-checking activity! As students correctly answer 10 questions about tax, tip, discounts, and commission, pixels in a hidden Pi Day-themed image begin to reveal. Once all questions are answered correctly, the full picture is uncovered! This self-checki