12.5*88.8-0.25*4.44 简便运算 不对吧答案因该是1108.89

问题描述:

12.5*88.8-0.25*4.44 简便运算
不对吧答案因该是1108.89

12.5*88.8-0.25*4.44
=12.5*8*11.1-0.25*4*1.11
=100*11.1-1*1.11
=1110-1.11
=1108.89