Using Product to convert Text(Numbers) to Numbers

In 4 columns I have numbers in multiple cells that are numbers stored as text. To resolve this I wanted to simply times each individual number by 1 to convert it. Its not working though the numbers remain as numbers stored as text.

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and

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but no success

Thank you both very much for the help. Working now. I used

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I was able to adapt it easily to another range I need to format as well. The help very much appreicated.