Maths connect 1R. 

 - Oxford, OX :  Heinemann Educational Pub,  2003. 
 - ix, 215 p. : col. ill.:  26 cm. 
<br/><br/> Includes index 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>978-0-435-53491-2 
<br/><br/><label>LC Class. No.: </label>372.72 S15 c2005