Do You Spell Out Numbers In Chicago Style

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Numbers: The Bane of Writers Everywhere

So, you're writing a paper, and you're staring at a number. Do you spell it out, or do you just slap down some digits and call it a day? If you're following the Chicago Manual of Style (or CMOS, as the cool kids call it), this decision can be more complex than choosing a flavor of ice cream.

Do You Spell Out Numbers In Chicago Style
Do You Spell Out Numbers In Chicago Style

The Basic Rule: Spell It Out!

Generally speaking, CMOS suggests spelling out numbers from zero to one hundred. So, "five" is good, but "5" is a no-no. It's like the style guide is trying to force us to rediscover the joy of counting on our fingers.

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Exceptions to the Rule: When Numbers Reign Supreme

But wait, there's more! CMOS is not entirely heartless. There are situations where numbers are the preferred option. For example:

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  • Big Numbers: If you're dealing with numbers over one hundred, feel free to unleash those digits. Nobody wants to write out "one thousand two hundred and thirty-four."
  • Numbers in Series: If you're comparing multiple numbers, use digits for consistency.
  • Numbers with Units: When numbers are followed by units of measurement (like 5 meters or 3 pounds), use numerals.

The Perils of Number Placement

Another thing to consider is where the number appears in your sentence. Starting a sentence with a number is generally frowned upon in formal writing. So, instead of "12 people attended the party," try "Twelve people attended the party." It's a small change, but it can make a big difference.

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When in Doubt, Consult the Oracle (or the CMOS)

If you're still unsure about whether to spell out a number or use digits, don't panic. The CMOS is a comprehensive guide, and it covers just about every number-related scenario imaginable. You can also try consulting a professional editor, but be prepared to pay through the nose. Or you could just wing it and hope for the best.

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How to Handle Numbers Like a Pro

  • How to know when to spell out a number: Generally, spell out numbers from zero to one hundred.
  • How to handle large numbers: Use numerals for numbers over one hundred.
  • How to deal with numbers in a series: Use numerals for consistency.
  • How to avoid starting a sentence with a number: Spell out the number or restructure the sentence.
  • How to find more information: Consult the Chicago Manual of Style.
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Quick References
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chicagoparkdistrict.comhttps://www.chicagoparkdistrict.com
luc.eduhttps://www.luc.edu
cps.eduhttps://www.cps.edu
fieldmuseum.orghttps://www.fieldmuseum.org
chicago.govhttps://www.chicago.gov/city/en/depts/dps

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