The book provides review of complex multiplication and division techniques, plus emphasis on skills with equivalent fractions, mixed numbers, addition and subtraction of fractions. It also introduces comparing, adding, and subtracting decimals, and comparing customary and metric units 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.