Sharma, Purnima <br/><br/>
Mental maths Book 1 
Purnima Sharma 
 - New Delhi  B Jain Publishers Pvt Ltd 
 - 48 p. : ill 
<br/><br/><label>ISBN: </label>9788131910245 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>372.7 PUR