Question

简算：5.6乘69.32加138.64乘0.05加693.2乘0.43

Answer 1

5.6*69.32+138.64*0.05+693.2*0.43=5.6*0.1*693.2+693.2*0.2*0.05+693.2*0.43=0.56*693.2+693.2*0.01+693.2*0.43=693.2*(0.56+0.01+0.43)=693.2*1=693.2