101 must know  challenging maths word problems / 
Joylynn Cheng; project editor; Ryan Sia.   
 - SG :   Singapore Asia Publishers, Pte, Ltd,  2013. 
 - 51p.: col. ill. 
<br/><br/><label>ISBN: </label>9789814453226   
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>TR 372.7 C241o 2013