• Spell out numbers that begin a sentence.
• Use numerals for longer numbers
• Use a combination of words and numerals for extremely large sums: 4 million; 6 billion; 9 trillion
• Use numerals for all numbers above nine
• Use words for fractions: two-thirds (and hyphenate them)
Use numerals for
– times and dates,
– decimals and statistics,
– chapter, page,
– scene, and line numbers,
– Quantities with symbols
– Scores in sports/games
– Hyphenate two-word numbers from twenty-one to ninety-nine.