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Math Help - do you use commas when writing out the word name of a number?

  1. #1
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    do you use commas when writing out the word name of a number?

    another dumb question
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  2. #2
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    No, not if you are referring to expressing a number in words like nine billion one hundred ninety-two million six hundred thirty-one thousand seven hundred seventy.
    Last edited by NOX Andrew; October 18th 2010 at 10:02 AM.
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  3. #3
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    darn i have alot of commas to erace now
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  4. #4
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    Quote Originally Posted by ArchitecturalEngineer View Post
    another dumb question
    Not a dumb question. I generally use commas to keep the reader from getting confused and make it easier to read.
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  5. #5
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    No but then I always use scientific or engineering notation to avoid confusion.

    For example 1 billion can be either 10^9 or 10^12 depending on which system you use
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