求0.56÷(0.08+0.12)×1.7简便计算

分类: 作业答案 • 2021-12-19 15:55:57

问题描述：

答

0.56÷(0.08+0.12)×1.7
=0.56÷0.2×1.7
=7.8x1.7
=(8-0.2)(2-0.3)
=16-2.4-0.4+0.06
=13.26