计算:4.8×17.4×6.25-37.5×0.174×5.•3=_.

问题描述:

计算:4.8×17.4×6.25-37.5×0.174×5.

3
=______.

4.8×17.4×6.25-37.5×0.174×5.

3

=48×1.74×6.25-3.75×1.74×
16
3

=300×1.74-
15
4
×
16
3
×1.74,
=300×1.74-20×1.74,
=(300-20)×1.74,
=280×1.74,
=487.2.
故答案为:487.2