野草園

野草的樂趣就是瘋長。而且,雜草叢生的地方才是最自然、最接近本質、最能觸摸到心跳的地方。
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兒子今天的數學作業

(2008-10-06 16:48:25) 下一個
兒子今天的家庭作業,第八題:Write a place-value number riddle.

於是他就草就了如下這麽個數謎:

My thousands digit is more than 3 and also a multiple of 4. My hundreds digit is 2 more than my thousands digit. My tens digit is the hundreds digit times two, then minus 3. My ones digit is a multiple of 3 and is divisible by 2. The number in my tenths place is 1111/2222 turned into a part of a number. The number in my hundredths is not 1 or 7, and isn’t any number divisible by 3. It is not 2 or 8 either. The thousandths digit is 5 more than my hundredths digit.

What number am I?



兒子對我說:一個月以後再給答案。

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裘教 回複 悄悄話 俺連安眠藥都免了。:)
breezebrook 回複 悄悄話 等我去吞顆tylenol再來解題。
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