Assess ALL of the CCS Common Addition and Subtraction Situations for Kindergarten, 1st, and 2nd (K.OA.A.2, 1.OA.1, 2.OA.1) AND the Mathematical Practice Standards!This assessment is a series of “steps.” The steps gradually increase in story problem complexity and number size. Multiple recording sheets are included for teachers and students to assess progress (appropriate for Kindergarten, 1st, or 2nd graders). Great tool to use for Differentiation, Response to Intervention, or Extension. Idea