This book includes instant answer number matrix chart. This giant-size book makes it really easy and fun to master times tables! 2 X 4 = 8. It includes all the multiplication tables from 1 to 20 in a quick reference format that is ideal for home or school. 3 X 9 = 27. The large pages allow several users to refer to the book at the same time, sharing and aiding the learning process. 7 X 17 = 119. It is a lively, accessible and effective instructional tool. 12 X 20 = 240. The number matrix at the back of the book provides all the times tables up to 12 X 20 at a glance. This big-format book puts the fun into numbers and is suitable for children from pre-school age upwards. Studies have shown that youngsters concentrate and perform better in basic arithmetic tests when the sums are printed on bright, appealingly tinted backgrounds - which is exactly how the numbers in this book are presented. Early learners can memorize the tables and then test themselves afterwards, while the ready reckoner number matrix on the final two pages will help them to see the totals in an instant.