10.1*1-56-0.156简便运算

问题描述:

10.1*1-56-0.156简便运算

10.1*1-56-0.156
=(10+0.1)*1-0.056*1000-(0.1+0.056)
=10+0.1-0.056*1000-0.1-0.056
=10+0.056*999
=10+55.944
65.944

10.1*1-56-0.156简便运算
题目应该是10.1*1.56-0.156吧?!
10.1*1.56-0.156
=(10+0.1)*1.56-0.156
=10*1.56+0.1*1.56-0.156
=15.6+0.156-0.156
=15.6.