2.011乘390+20.11乘41+201.1乘2+

分类: 作业答案 • 2021-12-28 18:56:28

问题描述：

答

2.011乘390+20.11乘41+201.1乘2
=20.11*39+20.11*41+20.11*20
=20.11*(39+41+20)
=20.11*100
=2011谢谢啦请采纳。不客气