Question

5.6*69.32+138.64*0.05+693.4*0.43 简算

Answer 1

= 5.6*69.32 + 2*0.05*69.32 + 69.32*10*0.43 + 0.2*0.43

= 5.7*69.32+4.3*69.32+0.086

= 10*69.32 + 0.086

= 693.2 +0.086

= 693.286