Sharma, Purnima <br/><br/>
Mental maths : book 4 
Purnima Sharma 
 - New Delhi  B. Jain Pub  2010 
 - 48 p. : ill. ; 30 cm 
<br/><br/><label>ISBN: </label>9788131910276 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Maths
<br/><br/><label>Dewey Class. No.: </label>510 SHA