作业帮34.5*76.5-345*6.42-123*1.45
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/03 17:27:57
34.5*76.5-345*6.42-123*1.45
34.5*76.5-345*6.42-123*1.45
34.5*76.5-345*6.42-123*1.45
34.5*76.5-345*6.42-123*1.45=2639.25-2214.9-178.35=246
34.5乘76.5-345乘6.42-123乘1.45 =34.5×76.5-34.5×64.2-123×1.45 =34.5×(76.5-64.2)-123×1.45 =34.5×12.3-123×1.45 =