Exercises reinforce place value and estimation skills, multiplication and division with regrouping and multiple digits. The book also introduces fractions and simple geometric concepts Harcourt Family Learning Workbooks are a comprehensive line of workbook developed through a partnership with Harcourt, a leading educational publisher. Based on national teaching standards, these workbooks provide complete practice in math, reading, and other key subject areas. | Math Skills: Grade 4 (Flash Kids Harcourt Family Learning) by Flash Kids Editors, Paperback | Indigo Chapters