Addition assessment worksheet for 1st grade. B2G2 Free Math Worksheets for First Grade.
1.OA.A.1 Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
Addition Assessment | Addition Models Worksheet
Operations and Algebraic Thinking
Addition to twenty