Leap Year frogs addition and subtraction Mystery Pixel Art to use on Leap Day or at the end of the year! Students solve basic addition and subtraction problems to auto-generate one of 5 themed pixel art images plus a "secret message" and hidden GIF. This set includes versions for Leap Day plus a more generic summer message to use the other years! Buy once and use EVERY year!This self-checking, editable, digital activity works with ANY device with Google™ Sheets (iPads, Chromebooks, and more