Heuristics in maths:  primary 1/ 
Madeline Goh. 
 - Singapore:  Educational Publishing House,  2015. 
 - 172p. 
<br/><br/><label>ISBN: </label>9789814662642 
<br/><br/><label>Subjects--Topical Terms: </label>--study and teaching (primary).
<br/><br/><label>Dewey Class. No.: </label>TR 510 G559 2015