请老师教我这题,谢谢了
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/04/29 22:21:29
解题思路: 计算可解
解题过程:
解:0.5²+(1-0.2×3/5)÷(-2)²
=0.25+(1-0.2×0.6)÷4
=0.25+(1-0.12)÷4
=0.25+0.88÷4
=0.25+0.22
=0.47
解题过程:
解:0.5²+(1-0.2×3/5)÷(-2)²
=0.25+(1-0.2×0.6)÷4
=0.25+(1-0.12)÷4
=0.25+0.88÷4
=0.25+0.22
=0.47