简便运算:77×98

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/08 05:28:24
简便运算:77×98
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简便运算:77×98
简便运算:77×98

简便运算:77×98
77×98
=77×(100-2)
=77×100-77×2
=7700-154
=7546

(丨00一2)X77