Challenging  maths:  examination papers/ 
Mabel Cheong. 
 - 3rd ed. 
 - Singapore:  Educational Publishing House,  2014. 
 - 48p. 
<br/><br/><label>ISBN: </label>9789814600361 
<br/><br/><label>Subjects--Topical Terms: </label>--study and teaching (primary).
<br/><br/><label>Dewey Class. No.: </label>TR 510 C4219 2014