15.6乘6.5与2.4的差，所得的积再除以4，结果是多少？+H2Z1P/i*_/J5Z;H8\3~/o(X;j
算式：提示;k+w;A6Y)S)F+H2Z1P/i*_/J5Z;H8\3~/o(X;j
答：结果是9h7]/\(j8d;e6]+\+H2Z1P/i*_/J5Z;H8\3~/o(X;j