-3-[-5+(1-0.2x3/5)÷(-2)]计算
问题描述:
-3-[-5+(1-0.2x3/5)÷(-2)]计算
答
-3-[-5+(1-0.2x3/5)÷(-2)]
=-3-[-5+(1-0.12)÷(-2)]
=-3-[-5+0.88÷(-2)]
=-3-[-5-0.44]
=-3+5.44
=2.44