Here's a set of 6 quick Math Mysteries that focus on concepts of Place Value! These can be used as Math Warm-Ups,Ticket out the Door, a Math center, partner pair activities, small group instruction, or whole group instruction. Each mystery has 4 suspects and students have to determine who is guilty of the "fuzzy" math! They are also asked to explain their thinking, which is a critical component in the new Common Core Math curriculum. Look out for the supplementary flipchart that goes with these mysteries! I hope you and your students enjoy these!!!!