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目で見る算数

All videos
¥ 680 (1 month)
All videos
¥ 680 (1 month)
A video doesn't play smoothly ?

数を生み出す箱

目で見る算数

数を生み出すことのできる不思議な箱があります。ヴーン。どうやら数が生まれたみたい。箱に入っているのは２たすと８になる数だから…。他にもやってみると…。

All videos
¥ 680 (1 month)
Details of how to purchase here.
Details of how to purchase here.

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