39乘以50乘以127的简便计算?
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发布时间:2022-04-24 18:24
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热心网友
时间:2022-05-03 11:21
等于(40-1)*50*127
=(40*50-1*50)*127
=(2000-50)*127
=2000*127-50*127
=254000-6350
=247650
热心网友
时间:2022-05-03 12:39
39x50x127
=(40-1)x50x127
=(40x50-1x50)
=(2000-50)x127
=2000x127-50x127
=254000-6350
=247650