兩個數(shù)都乘以3積是多少
兩個數(shù)都乘以3積是多少
數(shù)學(xué)人氣：351 ℃時間：2020-06-22 08:29:14
優(yōu)質(zhì)解答
兩個因數(shù)都乘以3,則積擴(kuò)大為原來的3×3＝9倍
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