99乘任何數
99乘1=99
99乘2=198
99乘3=297
..............
如此類推
可發現當中的奧妙???
不懂看下
↓↓↓
例如99乘99
積係9801
首先係98
99-1=98
積係頭2個
而01就係........
99-頭兩個數值
積係99-98
積係1
不明可再發問
999,9999,99999
都係一樣
試下計啦!!!
99的發現
2007-05-01 11:20 pm
回答 (2)
2007-05-01 11:25 pm
✔ 最佳答案
我唔明你講咩野！！吳該請你簡單講一次！！ 
2007-05-01 11:48 pm
99 x 1= 0|99
99 x 2= 1|98
99 x 3= 2|97
and so on...
do u notice that?
the 百位數 is 0, 1, 2, 3, 4...
the 十位數 and 個位數 is 99, 98, 97, 96...
i discover that 99 x 10/x 11/x 12...... are also like this...
99 x 2= 1|98
99 x 3= 2|97
and so on...
do u notice that?
the 百位數 is 0, 1, 2, 3, 4...
the 十位數 and 個位數 is 99, 98, 97, 96...
i discover that 99 x 10/x 11/x 12...... are also like this...
參考: me
收錄日期: 2021-04-12 19:25:50
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070501000051KK02715