666.66乘7778+333.33乘4444

分类: 作业答案 • 2021-12-28 15:50:20

问题描述：

答

666.66*7778+333.33*4444
=666.66*7778+333.33*(2*2222)
=666.66*7778+(333.33*2)*2222
=666.66*7778+666.66*2222
=666.66*(7778+2222)
=666.66*10000
=6666600