Do you need an engaging activity to help your students practice the prefixes kilo, hecto, deca, deci, centi and milli? These puzzles make a great center, intervention activity or morning work, and will engage students in building words using those key prefixes! Along the way, they will build understanding of the number system and the metric system. Perfect for ELLs or for any student who needs to increase their math vocabulary!The activity focuses on the Greek and Latin prefixes that make up