Examples: We recovered about two-thirds of the stolen cash. Rule 2b.
Examples: Twenty-three hundred sixty-one victims were hospitalized. It is then that you will be thankful that you only have to remember nine and sets of three zeros, respectively. Examples: Forty-three people were injured in the train wreck. America's two most influential style and usage guides have different approaches: The Associated Press Stylebook recommends spelling out the numbers zero through nine and using numerals thereafter—until one million is reached.
For clarity, use noon and midnight rather than PM and AM. Rule 3b. While you might think that one's pretty simple, just wait until you have to count 27 zeros for an octillion or zeros for a centillion.
Hyphenate all written-out fractions. In Chicago style, as opposed to AP style, we would write four hundred, eight thousand, and twenty million with no numerals—but like AP, Chicago style would require numerals for ; 8,; and 20,