第644回 0とは(科学系ポッドキャストの日) byそんない理科の時間＠sonnaip

■オープニング・科学系ポッドキャストの日、テーマは0（ゼロ）・ゼロはなくてもいい?・西暦も月も日付も1から始まる・数え年と満年齢 ■ゼロとは・0の使われ方・位取りの「0」・筆算で計算しやすい、大きな数が簡単に表せる・数字...

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第644回 0とは(科学系ポッドキャストの日) byそんない理科の時間＠sonnaip

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