success in all areas of mathematics starts with a solid knowledge of the basic facts. this book provides concentrated practice of basic subtraction facts to help students reach mastery level. timed math drills: subtraction provides step-by-step practice in addition that starts with whole-page calculations using the same, single addend (1 thru 9), progresses to calculations using two different addends, and then to all-inclusive, mixed addends. the goal is to achieve mastery at the highest possible accuracy level in the lowest possible time. a chart is included on which each student's progress can be recorded. award forms are included to validate students' achievements. SKU:ADI1561755214