Question

Which of the following guidelines for using numbers in formal writing is correct? A. Use numerals when writing street names, such as 5th Avenue.

B. Numbers over 100 should be written out.
C. Always use letters if a number is the first word of a sentence.
D. Numbers should always be written out.

Answer 1

A, B and C are correct, but I would go as far as to say that all number above 10 should be written out