JENSEN, PAZ LACSAMANA <br/><br/>
Calculations made easy : addition and multiplication, substraction and division / 
PAZ LACSAMANA JENSEN 
 - ix, 158 p.; ill.; 22 cm  22cm 
<br/><br/><label>ISBN: </label>9789712726484 9789789712724 
<br/><br/><label>Subjects--Topical Terms: </label>--Problem exercises