Martin-Gay, K. Elayn, <br/><br/>
Prealgebra / 
K. Elayn Martin-Gay. 
 - 4th ed. 
 - Upper Saddle River, NJ :  Pearson Education,  2004. 
 - p. cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0131444476 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic.