Collins, Anne M. <br/><br/>
50 leveled math problems level 6 : 
Anne M. Collins 
 - 144 pages :   illustrations ;   28 cm 
<br/><br/><label>ISBN: </label>9781425807788 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Mathematics-- Problems, exercises, etc.<br/> Mathematics--  Study and teaching (Elementary)-- Problems, exercises, etc.<br/>Mathematics  --Study and teaching (Elementary)
<br/><br/><label>Dewey Class. No.: </label>372.7