Leal, Salilia S. <br/><br/>
Mathematics in a challenging world p / 
Salilia S. Leal ; Sylvia C. Ortiz 
 - Philippines :  ICS,  c2009. 
 - 250 pages :  illustrations ;  27 cm. 
<br/><br/><label>ISBN: </label>9717193113 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Preschool textbooks.
<br/><br/><label>Dewey Class. No.: </label>P Fil. 510 L435 2009