Originally posted by eeEric at 2005-5-5 07:20 PM:
326^2 - 325^2 = ?
要有一個快速計算的reason (知道的可在10秒內計算)
Originally posted by smallpotato226 at 2005/5/6 04:26 PM:
只出一題.....
俾人做左就冇野玩 la .......><
Originally posted by eeEric at 2005-5-6 04:33 PM:
重點是reason
(很多人都沒有說為甚麼咁計...)
Originally posted by snoopy11hk at 2005-5-6 05:14 PM:
...有 ar....
99 *99
Originally posted by 可愛的兔兒 at 2005-5-6 09:18 PM:
99x99
=998x1000+1
=998001
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