0.4×2.3x3.8的简便计算 0.4x2.3x3.8的简便计算如下:0.4x2.3x3.8=[0.4x(2+0.3)]x(3+0.8)=(0.4x2+0.4x0.3)x(3+0.8)=(0.8+0.12)x(3+0.8)=0.92x(3+0.8)... yuqi233 /学前教育 /2022-08-23 /270 阅读