Math skill-building workbook focuses on key math-building skills and explores the specific content areas with an interactive and fun approach. Team Time activities encourage multi-sensory development of skills. It helps students with addition and subtraction with two, three and four addends. Workbook improves proficiency in number formation, problem-solving and reading in the math content area. Children work with place values (ones, tens and hundreds), number sense, fact families and regrouping. Workbook is designed for first-graders and second-graders.