Poskitt, Kjartan. <br/><br/>
The mean and vulgar bits : fractions and averages / 
Kjartan Poskitt ; illustrated by Philip Reeve. 
 - London :  Hippo,  2000. 
 - 160 p. ;  20 cm. 
 - Murderous maths .
<br/><br/><label>ISBN: </label>9781407107097 
<br/><br/><label>Nat. Bib. No.: </label>GB99V3830  bnb 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fractions<br/>Average
<br/><br/><label>Dewey Class. No.: </label>510