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数学
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求1.25*96*0.25的简便运算
人气:440 ℃ 时间:2020-04-02 04:21:38
解答
1.25*96*0.25
=1.25*8*3*4*0.25(把96拆成了8*3*4)
=(1.25*8)*(0.25*4)*3(乘法结合律)
=10*1*3
=30
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