Numbers 1 to 9

Numbers from one to nine are usually written as words; all numbers 10 and over are usually written as numerals.

one

three

10

115

2,000

Except Numbers being compared should be kept in the same style.

Students from 8 to 11 years old are invited.

Students from eight to eleven years old are invited.

Very Large Numbers

You may use a combination of numbers and words for very large numbers.

15 million

1.2 billion

You may spell out large numbers that can be written as two words.

three million

seven thousand

If you need more than two words to spell out a number, write it as a numeral.