NO PREP Easter Collaborative Math Poster! An engaging Color by Code Team Building Activity for 2nd, 3rd, & 4th Grade Basic Operations Review. Perfect for Bulletin Board Decor! Fun group activitiy for student. To practice basic math skills. Increase relationships in the classroom, friends, teachers or families. Let students learn to work together. Students solve the given equations to color. These equations are integers and have a solution within 100. When finished, cut it out and place it in th