Maths challenge 3. 

 - Oxford :  Oxford University Press,  2000. 
 - 120 p. : ;  25 cm. 
<br/><br/> Includes glossary. 
<br/><br/><label>ISBN: </label>0199147795 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching.