具体运算符见下面:3×(13-(11-6))3×((13-11)+6)3×((13+6)-11)3×(13+(6-11))3×(6-(11-13))3×((6-11)+13)3×((6+13)-11)3×(6+(13-11))
3*(6-(11-13))3*((6-11)+13)(13-(11-6))*3请采纳,谢谢