document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1209331>Question 1209331</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi<BR>\n" );
document.write( "Find the value of 1-2+3-4+5-6+.....+2007-2008+2009-2010+2011. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #848378 by </B><A HREF=/tutors/aboutme.mpl?userid=amarjeeth123><B>amarjeeth123(570)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=amarjeeth123><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=848378\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The given series is 1-2+3-4+5-6+.....+2007-2008+2009-2010+2011\r<BR>\n" );
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document.write( "The given series is equivalent to (1+3+5+........+2011)-(2+4+6+........+2010)\r<BR>\n" );
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document.write( "We can use Google Sheets and Excel to solve the given problem.\r<BR>\n" );
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document.write( "I have attached a snippet of the Excel sheet.\r<BR>\n" );
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document.write( "Answer=1006 </SPAN>\n" );
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