Developed for children who need a bit more help with basic math concepts, students will gain confidence and speed as they move from basic to complex math structures. You set an appropriate time limit and watch as your students gain accuracy and increased speed as they move from basic to complex math structures. You set the appropriate time limit and watch as your students start becoming more comfortable with math. This book includes: practice drills for facts 0-9, 36 facts per drill, 2 types of equations, progress chart and award certificate. 28 reproducible, perforated pages. Subtraction drills; Grades 1-3.