8÷9(6+4)=? May 9, 2011 • {"login"=>"chainsaw", "email"=>"chainsawtiney@gmail.com", "display_name"=>"Chainsaw Riot", "first_name"=>"Chainsaw Riot", "last_name"=>"aka CCH"} 8÷9(6+4)=? 困擾世人廿二年的數學題。