數學題, urgent !!!!!!
2007-03-27 6:35 am
利用 0 至 9 十個數字, 組成 5 個兩位數,每個數字只可以使用一次, 如果該 5 個兩位數的和是奇數, 其最大的值是多少? (請列式)
回答 (3)
2007-03-27 7:00 am
✔ 最佳答案
it should be95
83
72
61
40
95+83+72+61+40
=351
2007-03-26 23:03:33 補充：
because on the unit placeat least 3 odd number........and we put the gearter on the ten-digit place.......so we can get the above number
2007-03-27 9:48 am
90+81+72+63+45
=351
=351
2007-03-27 6:39 am
I don"t know
收錄日期: 2021-04-18 21:39:11
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https://hk.answers.yahoo.com/question/index?qid=20070326000051KK05099