(123×124+125)-(125×124+123)的简便计算怎么算
问题描述:
(123×124+125)-(125×124+123)的简便计算怎么算
答
=(123x125-123+125)-(125x123+125+123)
=2-(125+123)
=2-248
=-246
希望能帮你忙,懂了请采纳,对不起啊,我写错了(123×124+125)-(125×124-123)的简便计算怎么算=(123x125-123+125)-(125x123+125-123)=2-(125-123)=2-2=0