从下面四张数字卡片中取出三张,按要求组成3位数。(急!加分!)

2024-12-03 19:11:05
推荐回答(2个)
回答1:

奇数:403,405,305,503,435,453,543,345
偶数:340,350,430,450,530,540,304,504,354,534
3的倍数:405,450,504,540,345,354,435,453,543,534
2的倍数(和偶数一样。。。)
5的倍数:340,350,430,450,530,540,345,435
2&3的倍数:450,504,540,354,534

回答2:

这是概率题啊,数字能重复使用吗??