math

<div style='padding-bottom: 2px; line-height: 0px'><a href='http://pinterest.com/pin/206673070369318006/' target='_blank'><img src='http://media-cache-ec3.pinterest.com/upload/206673070369318006_VUzpGwJM_c.jpg' border='0' width='378' height ='284'/></a></div><div style='float: left; padding-top: 0px; padding-bottom: 0px;'><p style='font-size: 10px; color: #76838b;'>Source: <a style='text-decoration: underline; font-size: 10px; color: #76838b;' href='http://images.google.com/imgres?q=math+jokes&amp;hl=en&amp;biw=1366&amp;bih=681&amp;gbv=2&amp;tbm=isch&amp;tbnid=MHRbh16hp4KT0M:&amp;imgrefurl=http://joi.ito.com/weblog/2004/04/01/math-joke.html&amp;docid=dlsT56wQ96M_DM&amp;w=378&amp;h=284&amp;ei=uRFrTueuCYq2twf99tHwBQ&amp;zoom=1'>images.google.com</a> via <a style='text-decoration: underline; font-size: 10px; color: #76838b;' href='http://pinterest.com/risalatinka/' target='_blank'>Risa</a> on <a style='text-decoration: underline; color: #76838b;' href='http://pinterest.com' target='_blank'>Pinterest</a></p></div>