Fun with Mental Math Series Primer to Book 4 is carefully designed and planned to help the pupils to think logically and mathematically. At the same time, pupils discover and enjoy the intrinsic beauty, the patterns and the fun in numbers. 
Class Tests are introduced in every book from Book 1 onwards in order to keep the pupil at a competitive edge. The teacher should set up reasonable standards of achievement to adapt to the ability of the pupils in general. The rate of learning should be maintained so that over learning will not be carried to unjustifiable means.