Kumon Grade 3 Addition & Subtraction (Kumon Math Workbooks) by Kumon Publishing

Our Calculation Workbooks follow the Kumon Method, a proven learning system that helps children succeed and excel in math. Kumon Workbooks gradually introduce new topics in a logical progression and always include plenty of practice. As a result, children master one skill at a time and move forward without anxiety or frustration. Our Calculation Workbooks overlap with the Common Core State Standards.