4.66×0.28+4.66×0.82-4.66如何简便运算
问题描述:
4.66×0.28+4.66×0.82-4.66如何简便运算
答
4.66*(0.28+0.82-1)=0.466
答
提取一个4.66
答
(0.28+0.82-1)*4.66=0.1*4.66=0.466