123×5.67+8.77×569,用简便计算.
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/22 05:12:04
![123×5.67+8.77×569,用简便计算.](/uploads/image/z/198626-50-6.jpg?t=123%C3%975.67%2B8.77%C3%97569%2C%E7%94%A8%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97.)
123×5.67+8.77×569,用简便计算.
123×5.67+8.77×569,用简便计算.
123×5.67+8.77×569,用简便计算.
123×5.67+8.77×567
=123×5.67+877×5.67
=(123+877)×5.67
=1000×5.67
=5670
同样的:
123×5.69+8.77×569
=123×5.69+877×5.69
=(123+877)×5.69
=1000×5.69
=5690
题目难道不是123×5.67+8.77×567 或者 123×5.69+8.77×569 ?
以下对上述两种情形进行求
123×5.67+8.77×567
=123×5.67+877×5.67
=(123+877)×5.67
=1000×5.67
=5670
同样的:
123×5.69+8.77×569
=123×5.69+877×5.69
=(123+877)×5.69
=1000×5.69
=5690