數學 iq題
回答 (5)
2008-09-19 6:41 am
✔ 最佳答案
7x7-7-7-7+7/7+7/7+7/7=31
2008-09-20 5:00 am
7+7+7+7+7-7/7-7/7-7/7-7/7
=7*5-4
=31
7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7
=1*31
=31
2008-09-19 21:03:35 補充：
7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7
=7+1*24
=7+24
=31
7+7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7
=7+7+1*17
=7+7+17
=31
=7*5-4
=31
7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7
=1*31
=31
2008-09-19 21:03:35 補充：
7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7
=7+1*24
=7+24
=31
7+7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7+7/7
=7+7+1*17
=7+7+17
=31
2008-09-20 3:32 am
7*7*7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7/7
2008-09-19 6:47 am
[7] [+] [7] [+] [7] [=] <--------- you will get 21 here
[/] [7] [=] <--------- you will get 3 here
[+] [7] [+] [7] [+] [7] [+] [7] [=] <--------- you add 28 to 3
finally you will have 31 on screen
[/] [7] [=] <--------- you will get 3 here
[+] [7] [+] [7] [+] [7] [+] [7] [=] <--------- you add 28 to 3
finally you will have 31 on screen
2008-09-19 6:46 am
7x7-7-7-7+7/7+7/7+7/7 ( 7*7-7-7-7+7/7+7/7+7/7 )
=31
=31
收錄日期: 2021-04-15 17:26:20
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080918000051KK02318