如题所述
简便计算
62x28+69x56
=31x2x28+69x56
=(31+69)x56
=100x56
=5600
62x28+69x56
=31x2x28+69x56
=(31+69)x56
=100x56
=5600
温馨提示:答案为网友推荐,仅供参考
第1个回答 2020-03-11
简便计算过程方法如下
解:62x28+69x56
=31x2x28+69x56
=(31+69)x56
=100x56
=5600本回答被网友采纳
解:62x28+69x56
=31x2x28+69x56
=(31+69)x56
=100x56
=5600本回答被网友采纳