问题描述： 12.5×6.787×1/8+1.25×678.75×0.125+0.125×533.75×1/8简便方法 初一 1个回答 分类：数学 2019-10-11 问题解答： 我来补答 解： 12.5×6.787×1/8+1.25×678.75×0.125+0.125×533.75×1/8 =1/8x(12.5×6.787+1.25×678.75+0.125×533.75) =1/8x[12.5×(6.787+67.875+5.3375)] =0.125x12.5x79.9995 =0.125x12.5x（80-0.0005） =0.125x1000-0.00078125 =125-0.00078125 =124.99921875 展开全文阅读
