用简便计算,
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/02 05:17:53
用简便计算,
用简便计算,
用简便计算,
6.75×0.25-2.75÷4
=6.75×0.25-2.75×1/4
=6.75×0.25-2.75×0.25
=(6.75-2.75)×0.25
=4×0.25
=1
用简便计算,
用简便计算,
用简便计算,
6.75×0.25-2.75÷4
=6.75×0.25-2.75×1/4
=6.75×0.25-2.75×0.25
=(6.75-2.75)×0.25
=4×0.25
=1