Teachers and parents who have used Challenge Math and Primary Grade Challenge Math have asked for a book for students whose skill levels fall in between these two popular resources for high ability learners. Upper Elementary Challenge Math is designed for those students in grades 3-5 who need more challenging material than they typically encounter in most math curriculums. As in other Zaccaro math books, problems are presented at 4 levels of difficulty after each chapter’s instruction. In addition, each chapter includes multiple problem sets in which a single problem type is presented in increasingly complex steps, illustrating how a simpler problem can progress from one step to multi-step problem solving. Detailed answer section. Reproducible.