Building mathematics skills / 
Richard A. Denholm ... [et al.] ; edited by Robert B. Davis and Robert H. Sorgenfrey. 
 - Lombard ; Illinois :   Riverside,   c 1980. 
 - 341 p. :  ill. ;   27 cm.  
 - Riverside mathematics series .
<br/><br/> Includes index.  
<br/><br/>   
<br/><br/><label>ISBN: </label>0-8292-0005-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Mathematics -- Study and teaching (Primary).<br/> Mathematics -- Study and teaching (Elementary).
<br/><br/><label>Dewey Class. No.: </label>510 / D414b