Find two numbers that never reaches 0 as example:
6729
9276-6729=2547
7452-2547=4905
5094-4905=189
981-189=792
792-297=495
594-495=99
99-99=0
this one reaches 0
Please help me to find two 4-digit number that never reaches 0
SHOW YOUR STEPS!
MATHS QUESTION
2010-02-25 7:39 pm
回答 (2)
2010-02-26 12:51 am
✔ 最佳答案
8712 <----> 6534 is a infinity cycle :8712 - 2178 = 6534
6534 - 4356 = 2178
8712 - 2178 = ......
Some other special number can reach 8712 or 6543 :
8866 - 6688 = 8712
..................................
9801 - 1089 = 8712
..................................
9922 - 2299 = 7623
7623 - 3267 = 4356
6543 - 3456 =...................
2010-02-25 17:14:32 補充：
9922 - 2299 = 7623
7623 - 3267 = 4356
Corr : 6534 - 4356 = 2178
......................................
2010-02-25 22:47:59 補充：
Corr :8866 - 6688 = 2178
2010-02-25 8:14 pm
May be the pair 1211 and 1121 can do this.
1211-1121=90
90-09=81
81-18=63
63-36=27
72-27=45
54-45=9
I hope I can help you!
1211-1121=90
90-09=81
81-18=63
63-36=27
72-27=45
54-45=9
I hope I can help you!
參考: me
收錄日期: 2021-04-21 22:08:21
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100225000051KK00374