计算：2005×3/8−0.375×1949+3.75×2.4的值为多少？

题目

计算：2005×

3

8

−0.375×1949+3.75×2.4

答案

2005×

3

8

-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．