document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=844478>Question 844478</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the sum of all of these?     1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30\r<BR>\n" );
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document.write( "isnt there like a technique? :D </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #508813 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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/cgi-bin/show-face.mpl?user=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=508813\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Pair them from the outside in<BR>\n" );
document.write( "1 + 30 = 31<BR>\n" );
document.write( "2 + 29 = 31<BR>\n" );
document.write( "3 + 28 = 31<BR>\n" );
document.write( "etc<BR>\n" );
document.write( "you get 15 pairs<BR>\n" );
document.write( "15*31 = 465<BR>\n" );
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