Humble Math - 100 Days of Timed Tests: Addition and Subtraction: Grades K-2, Math Drills, Digits 0-20, Reproducible Practice Problems

An answer key is included in the back of this book, so students can check their answers easily. A few minutes of practice a day can help students tremendously. This workbook has over 100 days of reproducible addition and subtraction practice problems for digits 0-20. Use these pages as timed tests to improve fluidity or let students complete them at their leisure.