"exercises devised by Michael Tonge; illustrated by Kelly Dooley" <br/><br/>
Times tables skills 

 -  Handforth : World International, c1999.  1999 
 - 32 
<br/><br/><label>ISBN: </label>9780749840211 
<br/><br/><label>Dewey Class. No.: </label>510  / 560