从4,0,5,2,这四张卡片中选三张,按要求组成三位数。答:5的倍数:405,205,425,245,250,240,420,450,540 3的倍数:405,204,504,240,420,450,540,402,405 既是2的倍数又是3的倍数:204,504,240,420,450,540,402 既是2的倍数又是5的倍数:250,240,420,450,540 既是3的倍数又是5的倍数:405,240,420,450,540,405 既是2和5的倍数又是3的倍数:...
还有是3,5的倍数。还有是2也是5:的倍数 。同时是2,3,5的倍数的数。答:2的倍数:230,320,240,420,250,520,302,402,502,342,352,432,532,204,304,504,2340254,324,354.5的倍数:230,240,250,320,340,350,420,430,450,520,530,540,205,305,405,235,245,325,345,435