C16 Use
the guidelines below to decide how to write numbers. 




a) Spell these out: 

b) Write these as numerals: 

C) Use Roman Numerals with these:



Always spell out a number when it begins a
sentence. If the number is very long, try to rewrite the
sentence so that it isn’t in the beginning. 

Always use numerals with numbers that have decimals. 

The World Wars: 
World War II 

Acts in a play 
Act IV 

Be inclined to spell out numbers of one or two
words. 
Use numerals when using numbers in a mathematical
sense. 

Names of kings and queens 
Henry VIII Elizabeth II 

Spell out numbers when they are used in
dialogue. 
Use numerals with numbers of three or more words 

Major sporting events: 
Superbowl XVII The XXIII Olympics 

Common fraction like “a half” or “three quarters”
should be spelled out when not used in a mathematical sense. 
Be inclined to use numerals with dates. 



Use numerals with acronyms or model numbers: He had
an AK47. 

