0.654+10.9*6.5怎样简算

分类: 作业答案 • 2021-12-20 07:41:27

问题描述：

0.654+10.9*6.5怎样简算

答

=0.1*(6.5+0.04)+10.9*6.5
=(10.9+0.1)*6.5+0.004
=(10+1)*6.5+0.004
=65+6.5+0.004
=71.504