Sachar, Louis. <br/><br/>
Sideways arithmetic from Wayside School / 
Louis Sachar. 
 - New York :  Scholastic,  c1989. 
 - 89 p. ;  20 cm. 
<br/><br/> Answers: p.75-p.89. 
<br/><br/> Booklist 
<br/><br/> Contains over fifty math puzzles and brainteasers. 
<br/><br/> 6  3-6 
<br/><br/><label>ISBN: </label>0590457268 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical recreations.<br/>Number games.<br/>Puzzles.
<br/><br/><label>Dewey Class. No.: </label>793.7