如题所述
924÷[324-(300+2)]
=924÷[(300+24). (324-2)]
=924÷[(324-300)+ (324-2)]追答
=924÷[(300+24). (324-2)]
=924÷[(324-300)+ (324-2)]追答
没改完,无意按了提交,重算
924÷[324-(300+2)]
=924÷[(300+24)- (300+2)]
=924÷[24-2]
=924÷22
=42
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