Straker, Anita <br/><br/>
Mental maths 5 
Anita Straker 
 - Cambridge  Cambridge University Press  2008 
 - 32 p. : ill 
<br/><br/><label>ISBN: </label>9788175962002 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>372.7 STR