This Workbook is developed for the third time to meet the increasing demand of parents from various portions of the India and also from the other countries. This workbook will provide an ample scope of competency enhancement to students of Grade 7th and 8th and above. They will move on through different mathematical and daily life problems to bring back some refinements in their basic understanding. The task of updating and reproducing the reference contents is also made with an objective of providing some background study materials to students having urgency to move on through self-propelled practices. Some experiences of previous class will be handled to link up the horizontal correlations of principal areas of competencies.