Addition Duckling Worksheets to 12 using Manipulatives, Math Center Addition Activities for Pre-K and KG.Use these colored ducklings Addition Mats to support student understanding of Addition and increasing their fluency with addition facts, sums to 12. Kids will enjoy solving addition math problems with the fun picture manipulatives to help. In the Addition Sums to 12 -Ducklings resource, children write equations and do the addition. Answer cards are also included. Tip: Laminate this downloa