简便计算：6.25×0.16＋264×0.0625＋52×0.0625＋62.5×0.2

分类: 作业答案 • 2021-12-23 13:58:49

问题描述：

答

6.25×0.16＋264×0.0625＋52×0.0625＋62.5×0.2
=6.25x0.16+6.25x2.64+6.25x2
=6.25x(0.16+2.64+2)
=6.25x4.8
=2.5x2.5x8x0.6
=(2.5x8)x(2.5x0.6)
=20x1.5
=30