321*456-123*654简便运算
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/08/12 13:11:51
321*456-123*654简便运算
![321*456-123*654简便运算](/uploads/image/z/6991503-15-3.jpg?t=321%2A456-123%2A654%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97)
321*456-123*654
=18*107*76-18*41*109
=18*(107*76-41*109)
=18*(8132-4469)
=18*3663
=65934
=18*107*76-18*41*109
=18*(107*76-41*109)
=18*(8132-4469)
=18*3663
=65934