Mathematics
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0.521=1×…+0.1×…+0.01×…
…に入る数字を教えて下さい。

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✨ Best Answer ✨

0.521=1×0+0.1×5+0.01×2+0.001×1

右辺を掛け算して全て足せば、左辺(0.521)と同じ数字になります。

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