(8-6/13-7/13)×2/7,简便计算,

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/27 08:08:20
(8-6/13-7/13)×2/7,简便计算,(8-6/13-7/13)×2/7,简便计算,(8-6/13-7/13)×2/7,简便计算,(8-6/13-7/13)×2/7=[8-(6/13-7/13

(8-6/13-7/13)×2/7,简便计算,
(8-6/13-7/13)×2/7,简便计算,

(8-6/13-7/13)×2/7,简便计算,
(8-6/13-7/13)×2/7
=[8-(6/13-7/13)]×2/7
=[8-1]×2/7
=7×2/7
=2