Generally, numerals are acceptable in the following uses. Treatment varies by discipline, however, so always check with your instructor or the style guide for the discipline in which you are writing.
Dates
July 4, 1776, 56 BCE, 30 CE
Addresses
77 Latches Lane, 519 West 42nd Street
Percentages
55 percent (or 55%)
Fractions
1/2
Decimals
0.047
Scores
7 to 3, 21-18
Statistics
average age 37, average weight 180
Surveys
4 out of 5
Exact amounts of money
$105.37, $106,000
Divisions of books
volume 3, chapter 4, page 189
Divisions of plays
act 3; scene 3 (or act III, scene iii)
Identification numbers
serial number 10988675
Time of day
4:00 p.m., 1:30 a.m.
Style note: Numbers in technical, scientific, and business writing
Exercises:
Numbers 1
Numbers 2
Related topic:
Abbreviations for scientific terms