Patilla, Peter <br/><br/>
Subtracting 

 - London  Kingfisher Books  c1990 
 - 32 p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic - Subtraction
<br/><br/><label>Dewey Class. No.: </label>513.2 P27s 1990