Heuristics in maths:  primary 4/ 
Madeline Goh. 
 - Singapore:  Educational Publishing House,  2016. 
 - 200p. 
<br/><br/><label>ISBN: </label>9789814693158 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>TR 510 G559 2016