The series is meant as a supplement to the textbooks to provide extra drill and practice to the children. Each book of the series comprises the 1) Practice exercises for extra-drill2) Question Bank for final revision3) Mental Mathematics4) Test PapersThe questions are graded and offer variety requiring intelligent approach. These are adequate in number to sharpen the intellect and thinking ability to the pupils, strengthen their understanding and develop accuracy, concentration and problem solving skills. Table Of Exercises.