Goldstone, Bruce <br/><br/>
Great estimations / 
Bruce Goldstone. 
 - New York:  Scholastic,  2006. 
<br/><br/><label>ISBN: </label>978-0-545-04223-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Numbers--Estimation
<br/><br/><label>Dewey Class. No.: </label>519.544 G578gr 2006