Understanding mathematics / K. B. Sinha ... [et al.] - Hyderabad : Universities Press, 2000 - x, 226 p. : ill. ; 24 cm. Includes index ISBN: 8173713553 : Rs. 120.00 Subjects--Topical Terms: Mathematics--Study and teaching (Secondary)Mathematics--Problems, exercises, etc Dewey Class. No.: 507.2