如题所述
简便计算过程方法如下
解:34x72+67x72-72
=72x(34+67-1)
=72x100
=7200
解:34x72+67x72-72
=72x(34+67-1)
=72x100
=7200
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第1个回答 2020-03-10
34x72+67x72-72
=72x(34+67-1)
=72x100
=7200
=72x(34+67-1)
=72x100
=7200