McGrath, Barbara Barbieri <br/><br/>
Teddy Bear subtraction / 
Barbara Barbieri McGrath & Tim Nihoff 
 - Watertown, MA  CharlesBridge  2016 
 - unpaged.  col. ill.  18 cm. 
 - McGrath Math .
<br/><br/><label>ISBN: </label>9781580894272 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Juvenile Literature