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rules of % of whole prolblems

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
numbers % fraction part ________l__________ whole l    
numbers % fraction change ________l__________ whole l    
% increase ORIGINAL x( 1 + 100 )    
% decrease ORIGINAL x (1- 100 )    
From a fraction to a decimal   Divide the numerator by the denominator  
From a fraction to a percent   Divide the numerator by the denominator and move the decimal 2 places to the right.  
From a decimal to a fraction   Use the place value of the last digit in the decimal as the denominator, and put the decimal's digits in the numerator.  
From a decimal to a percent   Move the decimal place 2 spaces to the right.  
From a percent to fraction   Use the digits of the percent for the numerator and 100 for the denominator, then simplify.  
From a percent to a decimal   Move the decimal place 2 spaces to the left.  


   





 
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Created by: abubblehead on 2012-01-19



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