Math Camp Grade 4, Unit 1: Numbers & Operations and Algebra Math Camp RL Grades 4 IL Grades 4 Details: Product type: Theme Set ISBN: 978-1-4042-1680-8 Copyright: 2008 Reading Level: Grade 4 Interest Level: Grade 4 Theme Set — $329.95 / $179.95 Other titles available in Math Camp Grade 4, Unit 1: Numbers & Operations and Algebra How the Arabs Invented Algebra Amazing Animals