一分鐘速算
6:25
Added: 1 year ago
From: a58589a
Views: 18,768
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  • 好爛.

    pPurejAi 1 week ago

  • 我心算比他快多了

    

    etcetc1234 3 weeks ago

  • 是因為都乘以9嗎?

    如果不乘以9呢?

    qwe11272003 3 weeks ago

  • 我家計算機也很快ㄟ

    

    lk9754280 1 month ago

  • 只有剛好是個位數比十位數少一才有效吧

    

    a56s45iop 1 month ago

  • 那57x9呢？

    

    guan0724 2 months ago

  • Comment removed

    BeautyCara 2 months ago

  • @guan0724 603 haaha

    

    BeautyCara 2 months ago

  • Comment removed

    sco587212100 9 months ago

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