Wells, Alison,  <br/><br/>
Subtraction 

 - 32 pages :   colour illustrations ;   23 cm 
 - Discovering math .
 - Discovering math .
<br/><br/><label>ISBN: </label>0761405941 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Subtraction - Juvenile literature
<br/><br/><label>Dewey Class. No.: </label>513.212