Make addition and subtraction mixed review more engaging with this self-checking digital pixel art activity for 2nd grade math! This no-prep resource includes 3 year-round school-themed activities for practicing addition and subtraction without regrouping. Students solve each problem, type their answer in the yellow answer cell, and receive instant feedback. Correct answers reveal part of the mystery picture automatically. This resource works in both Google Sheets and Excel. What’s included: • T