计算：784070+78407.1+7840.72+784.073+78.4074=_．

分类: 作业答案 • 2021-12-28 14:28:26

问题描述：

计算：784070+78407.1+7840.72+784.073+78.4074=______．

答

784070+78407.1+7840.72+784.073+78.4074
=784070×（1+0.1+0.01+0.001+0.0001）+0.1+0.02+0.003+0.0004
=784070×1.1111+0.1234
=871180.3004
故答案为：871180.3004．