掛け算の暗算方法（図式解法-3）
1:36
Added: 5 years ago
From: maximum1219
Views: 58,761
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  • 普通に計算したほうが早い

    

    syakuson1982 8 months ago

  • excellent!

    woosungstreet 2 years ago

  • ヒッサンと同じじゃねえか　頭悪すぎ

    hotrainy 3 years ago

  • これは書き方が変わっただけで筆算と同値じゃん。。。

    それにこれが有効だったとしても、これを頭の中でやって暗算しろ­と･･･？

    rapyurady 3 years ago 2

  • thats the lattice method

    skrazzles 4 years ago

  • bullshit! why don't you just do the normal way? instead of this big crap bullshit way!

    griefter21 4 years ago 2

  • I think I just soiled my pants...AHHHHHHHHHHHHHHH.... that's better!

    socal33377 4 years ago

  • This method is better how?

    socal3377 4 years ago

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