9999*8889+3333*3333+9
=9999*8889+9999*1111
=9999(8889+1111)
=9999*10000
=99990000
(1/3)（紧急）数学题,9999*8889+3333*3333+9=?4*6/2+6*8/2+8*10/2+12*14
9999*8889+3333*3333+9
=9999*8889+9999*1111
=9999(8889+1111)
=9999*10000
=99990000