document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1084467>Question 1084467</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mentally compute the product of 49 and 19. Describe the steps that you mentally went through to get your answer. Prove your answer using standard multiplication. Show your work. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #698559 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=698559\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Mentally compute the product of 49 and 19. Describe the steps that you mentally went through to get your answer.<BR>\n" );
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document.write( "There's more than 1 way.<BR>\n" );
document.write( "The average is (49+19)/2 = 34<BR>\n" );
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document.write( "The difference from the average is 15<BR>\n" );
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document.write( "49*19 = 34^2 - 15^2 = 1156 - 225 = 931<BR>\n" );
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document.write( "Or,<BR>\n" );
document.write( "50*19 = 950<BR>\n" );
document.write( "950 - 19 = 931<BR>\n" );
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document.write( "Or 49*19 = 7*7*19 = 7*133 = 931<BR>\n" );
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document.write( "How is my way of doing it relevant?<BR>\n" );
document.write( "How would you do it?<BR>\n" );
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