如题所述
72✘34+72✘67-72简便计算
72✘34+72✘67-72
=72*(34+67-1)
=72*100
=7200
72✘34+72✘67-72
=72*(34+67-1)
=72*100
=7200
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第1个回答 2017-03-07
=72x(34+67-1)
=72x100
=7200
=72x100
=7200
第2个回答 2021-04-01
72x34+72×67-72 =72×(34+67-l) =72×100 =7200