看外國人做乘法
2:30
Added: 5 years ago
From: cheeven
Views: 24,835
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  • 其实不神奇，分析一下就知道了。

    wzf1020 5 months ago

  • Comment removed

    handsomezac 5 months ago

  • KAI...98X89都點死人...

    roy046301 7 months ago

  • 不錯的算法

    e79456123 7 months ago

  • whats this have to do with america?

    JustSomeGuyOk 8 months ago

  • 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

    RushRikishi 8 months ago

  • 仲+復習

    wengian0224 10 months ago

  • 好不容易搞懂老外的邏輯 國小老師看到會吐血而以

    asxdf254 10 months ago

  • = =

    i dont get it

    demi30430 1 year ago

  • 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。

    48652298 1 year ago 8

  • oh no~ it works!!!

    laijeffrey512 1 year ago

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

    teapot232 2 years ago 3

  • care to try 999*999 with this method?

    wanwensi 2 years ago

  • i think we should train our eyes before cal

    haha

    banzaofking 2 years ago

  • how about 41X58=?

    174565876 2 years ago

  • This is great! What's the name of this method?

    jingleshady 3 years ago

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