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歡迎您訪問二年級日記怎么寫50字!

二年級日記怎么寫50字

更新時間:2021-12-14 12:29:17作者:admin2

五一期間,我和媽媽去商場買衣服,可是,我覺得那里的價錢很奇怪:說“買100送100”,就等于不用錢了嗎?媽媽說:“傻女兒,怎么會不用錢呢?”我說:“因為上面寫著買100送100,就是100-100=0,所以就不用錢啦!”媽媽說:“原來你是這樣算的,如果是這樣,那么商場的東西就不用錢了,就會來很多客人,這商場就會虧本很大了。”媽媽又說買100送100只是要50元就可以了,你知道嗎?聽了媽媽的解析,我還是似懂非懂,到底為什么呢?看來我還要再去商場認真調查或去請教曾老師了,看看她有什么高招,因為我知道這里還有很多我還未明白的數學知識。我帶著愉快的心情,來到學校問曾老師數學問題,曾老師說:“其實有些都是滿過100的,比如:滿100的有109、200、189……”老師又說:“滿100元的是送100元的券,顧客還是要先拿出錢用夠100元后,才有得送贈券的,并不是象你說的那樣不用錢。”曾老師對我這種有問題肯問的做法給予表揚,也歡迎我今后多問問題。

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