Times Tables Workbook , Math Drills : Multiplication Activity Books for Kids Ages 7-12 ; 105 Days of Timed Tests & More Than 5600 Problems 105 Days of multiplication practice and more than 5,600 drills. Discover the distinction a few minutes of practice can make. These are Activity book for kids, to help your child learn their multiplication facts and recall them with fluidity. This book focuses on digits 0-15. An answer key is included in the back , so children can easily check their own work. multiplication tables for kids.