241x345÷678÷345x(678÷241)这道算式如何简便?
问题描述:
241x345÷678÷345x(678÷241)这道算式如何简便?
答
241x345÷678÷345x(678÷241)
=(241÷241)x(345÷345)x(678÷678)
=1x1x1
=1
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