Julius, Edward H.,  <br/><br/>
More rapid math tricks and tips :   30 days to number mastery 

 - xi, 226 pages ;   26 cm 
<br/><br/><label>ISBN: </label>0471122386 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic
<br/><br/><label>Dewey Class. No.: </label>513.9