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Making numbers while the sun shines

Here, you'll use ISNUMBER() to find which cells are really numbers, then N() to convert all values in a column to be numbers.

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Instruksi latihan

A wind speed value is not really a number.

  • In H2, call ISNUMBER() to check if cell B2 is a number.
  • Copy the formula down to H20.
  • In column I, use N() to convert the values from column B to numbers.
  • In column J, use ISNUMBER() to confirm that column I contains only numbers.

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