Subtraction. 

 - USA :  Learning Journey International,  c? 
 -  60 puzzle pieces : cardboard, col. ; in container  Match it! 
 - ages 4+ .
<br/><br/><br/>English 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Subtraction
<br/><br/><label>LC Class. No.: </label>GA 513.212 Su16 c?