Sherard III, Wade H. <br/><br/>
Logic Algebra problems / 
By Wade H. Sherard III 
 - London :   Dale Seymour Publications,   1990. 
 - 51 pages :   illustrations ;  28 cm . 
<br/><br/> 50 number puzzles encouraging problem solving & critical thinking skills for secondary students with an algebra background; each puzzle has 10 clues to help find an unknown number; answer key included 
<br/><br/><label>ISBN: </label>9780866515368 
<br/><br/><label>LC Class. No.: </label>S55 L 
<br/><br/><label>Dewey Class. No.: </label>512