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看外國人做乘法

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Uploaded by on Feb 9, 2007

真是神奇的乘法

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Howto & Style

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Standard YouTube License

  • likes, 1 dislikes

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  • 哪裡神奇?

    你自己想一下自己做直式乘法時是怎麼做的,他只是把我們背好的9­9乘法表換成點慢慢一個一個數而已呀!

    影片最後的那個14為何要把1加到8那一位,用直式乘法去想就可­以理解了。

  • it will be lot quicker to just calculate it in your head... also there's something called----------- calculator

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All Comments (17)

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  • 其实不神奇,分析一下就知道了。

  • KAI...98X89都點死人...

  • 不錯的算法

  • whats this have to do with america?

    

  • 用倍的沒什麼好炫燿的 外國人背不起來? 長大才知道 原來像在背解答一樣 還沾沾自喜

  • 仲+復習

  • 好不容易搞懂老外的邏輯 國小老師看到會吐血而以

  • = =

    i dont get it

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