http://mss-919.omgforum.net/spm-f10/-t1.htm Thu, 23 Oct 2008 09:47:08 GMT 10 http://illiweb.com/fa/saphic/logo.gif http://mss-919.omgforum.net/spm-f10/-t1.htm http://mss-919.omgforum.net/spm-f10/math-iq-chinese-t198.htm 69tribe 数学IQ 请问1+2+3+4+......+99+100=多少？ 觉的很浪费时间在算。那怎么算才能快速算到答案呢？ 教你一个笨蛋算法 1+2+3+4+5+6+7+8+9+10=55 11+12+13+14+15+16+17+18+19+20=155 21+22+23+24+25+26+27+28+29+30=255 这里可以得出以下 1+2+3+4……+100=55+155+255+355+455+555+655+755+855+955 55+155+255+355+455+555+655+755+855+955睇到这行不要晕，算下有十个55=550。以下就系100+……900等于 ... SPM Thu, 23 Oct 2008 09:47:08 GMT http://mss-919.omgforum.net/spm-f10/math-iq-chinese-t198.htm#1257 http://mss-919.omgforum.net/spm-f10/math-iq-chinese-t198.htm http://mss-919.omgforum.net/spm-f10/welcomehappy-posting-t8.htm withoutwax
This is a thread for all ppl..esp the f5s

We share and exchange thoughts..
We solve the headscratching questions..
Together we ship through the troughs and hikes..
Together we score SPM with flying colors..

that's the whole purpose of founding this forum..

Happy posting!!]]> SPM Sat, 02 Aug 2008 12:01:06 GMT http://mss-919.omgforum.net/spm-f10/welcomehappy-posting-t8.htm#14 http://mss-919.omgforum.net/spm-f10/welcomehappy-posting-t8.htm