0.9×26+1.8×37的简便算法
问题描述:
0.9×26+1.8×37的简便算法
答
0.9×26+1.8×37
=0.9*2*13+1.8*37
=1.8*13+1.8*37
=1.8*(13+37)
=1.8*50
=90