掛け算するのに「=A1*B1*C1」と入力しがち セルの値を合計する時は「=A1+B1+C1…」と入力しないでSUM関数を使いますよね。では掛け算は？ 「=A1*B1*C1…」のように入力している人は多いのではないでしょうか。複数のセルを掛け合わせる機会は少ないですし、2，3 ...

Have you ever thought of the humble SUM function as a secret weapon for advanced analytics? Most Excel users see it as a basic tool for adding numbers, but what if I told you it could do so much more?

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