Review addition, subtraction, multiplication facts, and 3 digit by 1 digit multiplication with this self-checking Halloween math trivia activity! Perfect for October math centers, early finishers, and independent practice in 3rd, 4th, or 5th grade. Make October math feel like a treat with this no-prep digital mystery picture! In this self-checking Google Form, students solve 16 math problems to answer fun Halloween trivia questions. Each correct answer unlocks part of the hidden image, keepin