Buy 2700+ Pages Math Games & Activities (PreK-2nd Grade) Buy Now @29.99 (70% Off)! Need a Unit Conversion activity? These 10 puzzles have children figuring out liquid equivalences (gallons to quarts), metric equivalences (cm to m), and US conversions such as inches to feet. It really is a simple goal! Memorize liquid, metric, and linear equivalences. … Continue reading These 10 Puzzles are The Perfect Unit Conversion Activity