Presenting the NEP 2020 edition of the Foundation Mathematics series for ICSE Class 6 by R S Aggarwal. This series is meticulously crafted based on the most recent curriculum outlined and recommended by the Council for the Indian School Certificate Examinations, New Delhi. The curriculum has been in effect since the academic year 2017-18 and is designed to foster the development of various mathematical skills, including numerical calculation, algebraic manipulation, spatial visualization, data analysis, measurement, estimation, and approximation. Additionally, it emphasizes the cultivation of key mathematical processes such as reasoning, communication, connections, problem-solving, heuristics, estimation, and technology among students at these grade levels.