7.05除以4减3.05乘0.25简便计算
问题描述:
7.05除以4减3.05乘0.25简便计算
答
7.05÷4-3.05×0.25
=7.05×1/4-3.05×1/4
=(7.05-3.05)×1/4
=4×1/4
=1