<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/8e3fd39c-35f5-4209-912a-474e475210f7/B47926B5-2B8B-4341-ACC2-7835EB3597D0/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://oddline.blogspot.com/2008/09/9-mental-math-tricks.html" href="http://oddline.blogspot.com/2008/09/9-mental-math-tricks.html" style="font-size: 11px;">oddline.blogspot.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://oddline.blogspot.com/2008/09/9-mental-math-tricks.html"><DIV id="crosscol-wrapper"><DIV id="crosscol" class="crosscol section"><DIV id="HTML2" class="widget HTML"><DIV class="widget-content"> </DIV> <DIV class="clear"></DIV> <SPAN class="widget-item-control"> <SPAN class="item-control blog-admin"> <A title="Edit" target="configHTML2" href="http://www.blogger.com/rearrange?blogID=2937679445056930500&widgetType=HTML&widgetId=HTML2&action=editWidget" class="quickedit"> <IMG height="18" width="18" src="http://img1.blogblog.com/img/icon18_wrench_allbkg.png" alt="" /> </A> </SPAN> </SPAN> <DIV class="clear"></DIV> </DIV></DIV> </DIV> <DIV id="main-wrapper"> <DIV id="main" class="main section"><DIV id="Blog1" class="widget Blog"> <DIV class="blog-posts hfeed"> <H2 class="date-header">Monday, September 22, 2008</H2> <DIV class="post hentry"> <A name="7567905909186609614"></A> <H3 class="post-title entry-title"> <A href="http://oddline.blogspot.com/2008/09/9-mental-math-tricks.html">9 Mental Math Tricks</A></H3></DIV></DIV></DIV></DIV></DIV></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://oddline.blogspot.com/2008/09/9-mental-math-tricks.html"><STRONG>1. Multiplying by 9, or 99, or 999<BR /></STRONG></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://oddline.blogspot.com/2008/09/9-mental-math-tricks.html"><STRONG>2. Multiplying by 11</STRONG></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://oddline.blogspot.com/2008/09/9-mental-math-tricks.html"><STRONG>3. Multiplying by 5, 25, or 125</STRONG></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://oddline.blogspot.com/2008/09/9-mental-math-tricks.html"><DIV><STRONG>4. Multiplying together two numbers that differ by a small even number</STRONG></DIV></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://oddline.blogspot.com/2008/09/9-mental-math-tricks.html"><STRONG>5. Squaring 2-digit numbers that end in 5<BR /></STRONG></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://oddline.blogspot.com/2008/09/9-mental-math-tricks.html"><STRONG>6. Multiplying together 2-digit numbers where the first digits are the same and the last digits sum to 10</STRONG></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://oddline.blogspot.com/2008/09/9-mental-math-tricks.html"><STRONG>7. Squaring other 2-digit numbers</STRONG></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://oddline.blogspot.com/2008/09/9-mental-math-tricks.html"><STRONG>8. Multiplying by doubling and halving</STRONG></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://oddline.blogspot.com/2008/09/9-mental-math-tricks.html"><STRONG>9. Multiplying by a power of 2</STRONG></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/B47926B5-2B8B-4341-ACC2-7835EB3597D0/blog/" title="blog or email this clip"><img src="http://content7.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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