Writing with numbers: Know the rules

Not only do writers have to know rules about words and grammar, but they also have to know how to deal with numbers. Try this quiz to see how you measure up!

1. Which is the correct format for writing a service code?
2. Which is the recommended way of writing a Canadian telephone number in an international format?
3. Which is the correct format to use in technical writing?
4. Which is the correct format for writing a sentence that begins with a number?
5. Which is the correct format for writing numbers with an abbreviation or symbol?
6. Which is the correct way of forming the plural of a decade?
7. Which sentence is correct?
8. Which number is correctly written?
9. In which sentence are the numbers correctly written?
10. Which is the correct format for the fraction in the sentences below?