Butaran, Rosario B., <br/><br/>
Number smart/ 
Rosario B. Butaran, [and five others]. 
 - Sampaloc, Manila:  Rex Book Store, Inc.,  2018. 
 - 44 pages:  tables;  28 cm. 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>97897123xxxxx 
<br/><br/><label>Dewey Class. No.: </label>510  / B97