Allman 
Division, Grades 6 — 12 [PDF ebook] 

Make math matter to students in grades 6 and up using Division: Daily Skill Builders! This 96-page book features two short, reproducible activities per page and includes enough lessons for an entire school year. It covers topics such as inverse multiplication, using tables, dividing by multiples of 10, averages and factors, understanding patterns, decimals and fractions, solving problems, and working with reciprocals. Activities become more challenging as students build upon what they have learned. The book is perfect for review and practice and supports NCTM standards.