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# Number

*Disambiguation: see grammatical number.*

A **number** is a mathematical object used for counting, measuring and labelling.^{[1]}

## Meaning[edit | edit source]

Numbers in English come in two main types:

- cardinal numbers;
*one, two, three, four, five*, etc - ordinal numbers:
*first, second third, fourth, fifth*, etc

Numeral adverbs marginally form a third type.

1 billion used to be 1,000,000,000,000, but the Americans changed it to be merely 1,000,000,000. But they haven’t told the Europeans, where 1,000,000,000 is a milliard (or similar). See large number.

Others:

- 12 is a dozen
- 20 is a score.

- We say 99.94 is "ninety-nine point nine four"

## Form[edit | edit source]

Note, Americans tend to say "one hundred thirty-two" rather than "one hundred and thirty-two"

Europeans often use different number separators so that "1,234.5" or "1 234.5" is written as "1.234,5"^{[2]}

The word *number* is a homograph, as it’s also the spelling for the comparative form of *numb*, which is pronounced /ˈnʌmə/.^{[3]}

## Pedagogy[edit | edit source]

Students often need to practise thinking of numbers in English, as they will naturally default back to L1 thinking when reading numbers.