1楼哈哈爸
(在这里随手写下你现在的心情)
发表于 2009-5-2 09:46
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再求助
2. How many whole numbers from 1 to 1000 can be expressed as the difference of the squares of two whole numbers? [ Note : 0 is a whole number.]
[Omission of essential working will result in loss of marks].
