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90+90+90+90+900+900+900+900+9+9+9+9=??????????
P.2 Maths
2006-10-18 1:54 am
回答 (10)
2006-10-18 1:59 am
✔ 最佳答案
90+90+90+90+900+900+900+900+9+9+9+9=90x4+900x4+9x4
=360+3600+36
=3960+36
=3996
2007-03-11 9:47 pm
發問者評價:
Thank you! It is
90+90+90+90+900+900+900+900+9+9+9+9
=90x4+900x4+9x4
=360+3600+36
=3960+36
=3996! ← factorial???????
Thank you! It is
90+90+90+90+900+900+900+900+9+9+9+9
=90x4+900x4+9x4
=360+3600+36
=3960+36
=3996! ← factorial???????
2006-10-20 1:10 am
90+90+90+90+900+900+900+900+9+9+9+9
=3996
=3996
2006-10-18 4:39 am
90+90+90+90+900+900+900+900+9+9+9+9
=3996
=3996
2006-10-18 3:55 am
90+90+90+90+900+900+900+900+9+9+9+9=
（90+900+9）×4=
999X4=
3996
（90+900+9）×4=
999X4=
3996
2006-10-18 1:58 am
===3996
2006-10-18 1:58 am
90+90+90+90+900+900+900+900+9+9+9+9
=3996
=3996
2006-10-18 1:57 am
3636~
收錄日期: 2021-04-12 18:14:41
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061017000051KK02555