Worksheets and Exit Slips to help your students practice the doubles strategy of addition. Huge variety of sheets included so you can differentiate for your students. This resource provides engaging ways for your students to practice doubles and near doubles. The skills included are appropriate for kindergarten, first grade, and second grade students.Worksheets:Circle the Doubles, Doubles +1, and Doubles +2Sort the dominoes (doubles, doubles +1, doubles +2, neither)Sort the equationsEquations