POWERS  
INTRODUCTION  
The main principles and properties of powers are revised in the first pages to let students discover them intuitively when using the windows. Then students can check their knowledge of these principles through simple excercises. In the pages with calculation games students can practice mental calculation of multiplications and divisions and apply the index laws. Finally it revises one of the applications of powers, how it is the factor decomposition of a number. 

OBJECTIVES  

Eduardo Barbero Corral 
Spanish Ministry of Education. Year 2007  
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