1. Understanding numbers is a series of ten textbooks of Mathematics for classes Primer a, Primer B, 1 to 8 as per the new curriculum published by the Council for the Indian School Certificate Examinations. 2. Systematically laid down, this series is written after extensive research and analysis, to help students encourage the study of Mathematics in the best interactive form. 3. It contains ample practice material, attractive illustrations, and real life examples for the students to relate the topics with their everyday life. 4. Practice time: br>Worksheet given at the end of each br>Chapter to revise the concepts (in Primer a, Primer B and classes 1 and 2) 5. Revision exercise: containing objective type questions for quick assessment of student's understanding. 6. Remember: to help the students easily recapitulate the key concepts and new facts 7. Fun activities: to help students understand Mathematics in a play-way manner 8. Points to Remember: is a summary of the concepts studied in the br>Chapter.