document.write( "Question 657300: What is the sum of 1 up to 100 \n" ); document.write( "
Algebra.Com's Answer #409805 by stanbon(75887)\"\" \"About 
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What is the sum of 1 up to 100
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\n" ); document.write( "List the numbers: 1,2,3,4,....98,99,100
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\n" ); document.write( "Notice that
\n" ); document.write( "1+100 = 101
\n" ); document.write( "2+99 = 101
\n" ); document.write( "3+97 = 101
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\n" ); document.write( "50+51 = 101
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\n" ); document.write( "Sum = 50(101) = 5050
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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