如题所述
第1个回答 2020-03-26
你好，这道题的简便算法如下：
123×18+123×85-123×3
=123×(18+85-3)
=123×100
=12300
望采纳。本回答被网友采纳
123×18+123×85-123×3
=123×(18+85-3)
=123×100
=12300
望采纳。本回答被网友采纳
第2个回答 2020-03-26
原式=123×(18+85-3)
=123×100
=12300
=123×100
=12300
第3个回答 2020-03-26
123x18+123x85-123x3
=123x18-123x3+123x85
=123x(18-3)+123x85
=123x15+123x85
=123x(15+85)
=123x100
=12300
=123x18-123x3+123x85
=123x(18-3)+123x85
=123x15+123x85
=123x(15+85)
=123x100
=12300
