難題數學 - 難題數=學數學數
難題數學=?
數學o既question
2008-06-24 12:59 am
回答 (6)
2008-06-24 4:41 am
✔ 最佳答案
難題數學 - 難題數=學數學數難題數學=?
ABCD-ABC=DCDC
A比D大1
D是雙數{除了0}
C是1,6 或2,7 或 3,8 或 4,9
所以
A --- D --- C
3 --- 1,6 --- 2
5 --- 2,7 --- 4
7 --- 3,8 --- 6
9 --- 4,9 --- 8
ABCD-ABC=DCDC
5274-527=4747 //
2008-07-03 10:09:12 補充：
A --- C --- D
3 --- 1,6 --- 2
5 --- 2,7 --- 4
7 --- 3,8 --- 6
9 --- 4,9 --- 8
才對
參考: 人
2008-07-06 2:51 am
難題數學 - 難題數=學數學數
難題數學=5274
5274-527=4747
難題數學=5274
5274-527=4747
2008-06-24 1:44 am
ABCD
- ABC
_______
DCDC
D must be even. Let D=2, C=1/6
When D=2, A=3
For C=1, B=4(rej. as B-A need to 借位)
For C=6, B=9(rej.)
The final answer can be found when tryinf all even D from 2-18
2008-06-23 17:45:10 補充：
002 is wrong
5824-582=5242 but not 4242
- ABC
_______
DCDC
D must be even. Let D=2, C=1/6
When D=2, A=3
For C=1, B=4(rej. as B-A need to 借位)
For C=6, B=9(rej.)
The final answer can be found when tryinf all even D from 2-18
2008-06-23 17:45:10 補充：
002 is wrong
5824-582=5242 but not 4242
收錄日期: 2021-04-13 15:44:38
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