如题所述
123ä¹ä»¥57å57ä¹ä»¥23ç¨ç®ä¾¿æ¹æ³
=ï¼123-23ï¼x57
=100x57
=5700
=ï¼123-23ï¼x57
=100x57
=5700
温馨提示:答案为网友推荐,仅供参考
第1个回答 2017-12-29
123×57-57×23
=(123-23)×57
=100×57
=5700
=(123-23)×57
=100×57
=5700