Master subtraction with confidence! This Subtraction Essentials Workbook (Book 3) is a comprehensive, no-prep resource designed to take students from basic subtraction review to advanced 3-digit regrouping. Whether you are introducing regrouping for the first time or providing intervention for struggling learners, this workbook offers a clear, step-by-step progression. Using visual supports like base-ten blocks and open number lines, students will develop a deep conceptual understanding of plac