0.72加4乘7.2加59乘0.72的简便算法

2024-12-18 17:50:10
推荐回答(1个)
回答1:

0.72+4*7.2+59*0.72
=0.72*1+40*0.72+59*0.72
=0.72*(40+59+1)
=0.72*100
=72