Schultz-Ferrell, Karren. <br/><br/>
Estimating and measuring / 
Karen Ferrell, Cathy Weiskopf, Linda Powley. 
 - New York :  Barron's ;  2008. 
 - 219 pages :  illustrations ;  19 cm. 
 - Adventures in mathopolis .
<br/><br/> Lostis Marbles, the mayor of Mathopolis, gets math help from Elexus Estimator -- quick at estimating volume, height, weight, and other quantities -- and Maverick Measurer, who values mathematical accuracy. 
<br/><br/> 1000  Lexile  
<br/><br/><label>ISBN: </label>9780764138676 0764138677 
<br/><br/><label>LCCN: </label>2008014256 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Estimation theory--Juvenile literature.
<br/><br/><label>LC Class. No.: </label>QA276.8  / .S259 2008 
<br/><br/><label>Dewey Class. No.: </label>519.5/44