|﹣8又1/3|+﹙﹣12又5/8﹚-7+﹙﹣9又1/3﹚-|﹢2又3/8|=

来源:学生作业学帮网 编辑:学帮网 时间:2024/06/28 16:06:17

|﹣8又1/3|+﹙﹣12又5/8﹚-7+﹙﹣9又1/3﹚-|﹢2又3/8|=

|-8又1/3|+(-12又5/8)-7+(-9又1/3)-|+2又3/8|
=8又1/3-12又5/8-7-9又1/3-2又3/8
=(8又1/3-9又1/3)-(12又5/8+2又3/8+7)
=-1-22
=-23