用3,6,9,72四个数组成两道乘法算式
用3,6,9,72四个数组成两道乘法算式
数学人气:350 ℃时间:2020-05-10 00:54:15
优质解答
72÷6=3+9小学二年级上期,还没学除法(3+9)×6=72
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