This complete, ready-to-project PowerPoint resource contains 13 original math brain teasers for students in Grades 3β6 (ages 8β12). Every problem is presented on its own beautifully designed question slide, followed immediately by a full answer slide that reveals the complete step-by-step working AND the hidden mathematical principle behind the problem. Zero prep. Download, open, project. β WHAT MAKES THIS DIFFERENT FROM OTHER BRAIN TEASER RESOURCES? Most brain teaser packs are collections