0.654+10.9*6.5怎样简算_数学解答

0.654+10.9*6.5怎样简算

人气：416 ℃　时间：2020-01-31 16:39:46

解答

=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