0.92*54+0.46*92简便算法!
问题描述:
0.92*54+0.46*92
简便算法!
答
0.92*54+46*0.92 =0.92*(54+46)=0.92*100=92
答
0.92*54+0.46*92 =0.92*54+0.92*46=0.92*100=92