2.35×2.8-0.35×2.8简便计算=(2.35-0.35)
解:原式=2.8×(2.35-0.35){注:乘法分配律}=2.8×2=5.6
解:2.35x2.8-0.35x2.8=2.8x(2.35-0.35)=2.8x2=5.62.35×2.8-0.35×2.8简便计算=5.6