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：2024/05/06 18:54:42

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

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