11111*11111*6+(11111*7+1)*11111*3=11111*11111*(6+7*3)+11111*3=11111*(11111*27+3)=11111*300000=3333300000 224466×446688÷(112233×223344)＝（224466÷112233）×（446688÷223344）＝2×2＝4
采纳哦