Civics in Practice: Principles of Government and Economics Mathematics for Economics Student Workbook with Answers Civics in Practice: Principles of Government and Economics Softcover print resource with answer key. Grades: 7-12 Material Type: Student Materials, Teacher Materials Format: Softcover, 32 Pages ISBN-13/EAN: 9780030666629 ISBN-10: 0030666627 Product Code: 1137188 National/State: National Copyright Year: 2003