1. Commas with Numbers, People and Places Created by Kathryn Reilly

2. Commas and Numbers Rule Use a comma every three digits after the number 999. Commas are not used in long numbers such as UPC or Serial numbers. 500 5,000 5,000,000 50,000,000 500,000,000

3. Commas and Dates Rule Use commas to separate the month and date from the year. Use a comma after the year. Example I was born on January 1, 1970, just after New Year’s Eve!

4. Commas and People Rule Use a comma to surround the person being directly addressed in a sentence Example Good Morning, Madeline, it’s a great day today!

5. Commas and People Rule Use commas to set off a person’s degree or professional title following their name. Example Dr. Florence Smith, PhD, will teach seven classes this semester.

6. Commas and Places Rule Use a single comma to separate a city from a state when writing an address. Mrs. Betty Smite 123 Lightening Lane Tulsa, Oklahoma 54321

7. Commas and Places Rule Use commas to separate the city from the state. Use a comma after the state. **Note: If the state is abbreviated, a comma is unnecessary** Example Did you read about the Occupy Wall Street protests in Baltimore, Maryland, last week? Did you read about the Occupy Wall Street protests in Baltimore, MD last week?

8. Commas and Places Rule Use a comma to separate the city from the country Example Galway, Ireland was one of the most beautiful places I’ve visiting so far.

9. When in Doubt… … ask for help! … consult a grammar book. … conduct a web search using key phrases such as “comma rules”.