(+12)-(+18)-(+23)+(+51)等于多少,

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/15 12:55:25

(+12)-(+18)-(+23)+(+51)等于多少,
(+12)-(+18)-(+23)+(+51)等于多少,

(+12)-(+18)-(+23)+(+51)等于多少,
=12-18-23+51
=(12+51)-(18+23)
=63-41
=22

=12-18-23+51
=63-23-18
=40-18
=22

希望能帮你忙,不懂请追问,懂了请采纳,谢谢

(+12)-(+18)-(+23)+(+51)
=12-18-23+51
=22