2.4x1.02和12.5x0.96x0.8的简便计算
求!!!!!!!!!!
2.4X1.02=2.4X(1+0.02)=2.4X1+2.4X0.02=2.4+0.048=2.448
12.5X0.96X0.8=(12.5X0.8)X(1-0.04)=100X1-100X0.04=96