Locke, Flora M. <br/><br/>
Math shortcuts / 
Flora M. Locke 
 - New York :      Wiley ,  1972 
 - vii, 166p. :  ill. ;  22 cm. 
 - Self-teaching guides .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0471543284 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics<br/>Ready-reckoners
<br/><br/><label>Dewey Class. No.: </label>510  / LOC