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负18加12加负7加负21加6加35等于

来源:学生作业帮 编辑:作业帮 分类:综合作业 时间:2024/05/09 06:19:58
负18加12加负7加负21加6加35等于
-18+12+(-7)+(-21)+6+35
=-18+12-7-21+6+35
=-6-7-21+6+35
=-13-21+6+35
=-33+6+35
=-27+35
=8 再答: -18+12+(-7)+(-21)+6+35
=-18+12-7-21+6+35
=-6-7-21+6+35
=-13-21+6+35
=-34+6+35
=-28+35
=]
再答: -18+12+(-7)+(-21)+6+35
=-18+12-7-21+6+35
=-6-7-21+6+35
=-13-21+6+35
=-34+6+35
=-28+35
=7