计算：2005×38−0.375×1949+3.75×2.4的值为多少？_数学解答

计算：2005×

−0.375×1949+3.75×2.4的值为多少？

人气：359 ℃　时间：2019-10-19 00:24:32

解答

2005×

-0.375×1949+3.75×2.4
=2005×0.375-0.375×1949+3.75×2.4
=2005×0.375-0.375×1949+0.375×24
=（2005-1949+24）×0.375
=80×0.375
=30．