document.write( "Question 1084522: Find the sum of all of the 3-digit positive integers. \n" ); document.write( "
Algebra.Com's Answer #698613 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Find the sum of all of the 3-digit positive integers. \n" ); document.write( "----------- \n" ); document.write( "Sum from 100 to 999 \n" ); document.write( "--- \n" ); document.write( "100 to 999 --> 900 numbers \n" ); document.write( "Use 450 pairs. \n" ); document.write( "100 + 999 = 1099 \n" ); document.write( "101 + 998 = 1099 \n" ); document.write( "etc \n" ); document.write( "450*1099 = 494550 \n" ); document.write( " |