Hayward, Linda. <br/><br/>
I can add upside down ;  Learn about easy addition, 
Linda Hayward, Cathy Goldsmith. 
 - New York :    Random House,   c1996. 
 - 1 v. (unpaged) :   col. ill. ;    28 cm. 
<br/><br/><label>ISBN: </label>0001979434 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Addition<br/>Addition--Juvenile literature
<br/><br/><label>LC Class. No.: </label>QA115