6减3减负7加负2等于
问题描述:
6减3减负7加负2等于
答
6减3减负7加负2
=6-3-(-7)+2
=3+7-2
=10-2
=8
6减3减负7加负2等于
6减3减负7加负2
=6-3-(-7)+2
=3+7-2
=10-2
=8