计算:2005×3/8−0.375×1949+3.75×2.4的值为多少?

问题描述:

计算:2005×

3
8
−0.375×1949+3.75×2.4的值为多少?

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.