document.write( "Question 919902: how many of the numbers between 1000 and 3000 begin or end with 2? \n" ); document.write( "
Algebra.Com's Answer #558056 by Edwin McCravy(20055)![]() ![]() You can put this solution on YOUR website! \r\n" ); document.write( "Case 1: The ones that begin with 2.\r\n" ); document.write( "They are the three digit integers 000 through 999 with a 2 in \r\n" ); document.write( "front. So there are 1000 of those. \r\n" ); document.write( "\r\n" ); document.write( "Case 2: The rest.\r\n" ); document.write( "Case 1 includes all the ones that begin and end in 2. So we\r\n" ); document.write( "don't want to count those again. So the ones that end with 2 \r\n" ); document.write( "but don't begin with 2 are the three digit numbers 100 through \r\n" ); document.write( "199 with a 2 placed on the end. There are 100 of those.\r\n" ); document.write( "\r\n" ); document.write( "Answer: 1000 + 100 = 1100 \r\n" ); document.write( "\r\n" ); document.write( "Edwin \n" ); document.write( " \n" ); document.write( " |