3333*3333+9999*8889
=3333*3*1111+9999*8889
=9999*1111+9999*8889
=9999*(1111+8889)
=9999*10000
=99990000
=3333*3333+9999*8889
=3333*3*1111+9999*8889
=9999*1111+9999*8889
=9999*(1111+8889)
=9999*10000
=99990000
3333×3333﹢9999×8889
=3333﹙3333﹢3×8889﹚
=9999﹙1111﹢8889﹚
=9999×10000
=99990000
3333*3333+9999*8889=3333*(3333+3*8889)
=3333*30000=99990000
3333×3333+9999×8889=9999×1111+9999×8889=9999×(1111+8889)=9999×10000=99990000
3333x3333+9999x8999=9999x1111+9999x8999=9999x10000=99990000