五年级小数四则运算71.5+11×71.51-51.11

问题描述:

五年级小数四则运算71.5+11×71.51-51.11

先算11×71.51,得数是786.61.
再算71.5加11×71.51,也就是71.5+786.61,得数858.11.
最后算71.5+11×71.51-51.11 ,也就是858.11-51.11,得数807.