document.write( "Question 994681: Estimate the following percentages without using a calculator
\n" ); document.write( "0.99% of 83,583
\n" ); document.write( "20% of 5,008,340
\n" ); document.write( "0.52% of 472,028
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Algebra.Com's Answer #613688 by Boreal(15235)\"\" \"About 
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The first one is 1% less than all of it.
\n" ); document.write( "If all is 83,583, 1% is two decimal places less, or 835.
\n" ); document.write( "Subtract that from 83,583 and you get 82718.
\n" ); document.write( "You probably can use 84,000-840 for this problem.
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\n" ); document.write( "20% of anything is 1/5.
\n" ); document.write( "1.5 of 5 million is one million. That is a decent estimate.
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\n" ); document.write( "The third one is about a half, and half of 472,028--use 470,000, and half of that is 235,000. This is an estimate, but it is a good one.
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