Make 2-digit addition practice fun with this Halloween self-checking pixel art activity for Google Sheets and Excel!Students solve 2-digit addition problems without regrouping, type their answers into the yellow answer cells, and receive instant feedback. Correct answers reveal parts of a Halloween mystery picture.This digital math activity is great for 2nd grade math centers, independent practice, early finishers, homework, or seasonal review.What’s included:• 3 self-checking digital activities