Waring, Chris. Maths : stuff you forgot from school / Chris Waring ; foreword by Caroline Taggart. - London : Michael O'Mara Books Ltd, c2010. - 192 p. : ill. ; 20 cm. - I used to know that . - I used to know that . Includes index. ISBN: 184317474X (hbk.) 9781843174745 (hbk.) Subjects--Topical Terms: Mathematics.Mathematics--Popular works. Dewey Class. No.: 510 / WAR 2010