Unit 8.1

Cardinal numbers: Decimals


Cardinal numbers give information about how many people or things there are.

Decimals are the smallest of the numbers, being the result of fractions.


Decimal numbers are the result of a fraction.

They normally have a comma or a point between the whole number and the decimals in the following way:
whole number + ,/. + decimals

NOTE: We normally use the singular form of the numbers when we are naming a concrete figure, while we use the plural form when we are not speaking about a concrete number, but in general terms.


  • 567/100 = 5,67
  • Five point sixty-seven


We use decimals when we deal with money, weight, length etc. Decimal numbers are used in situations where more precision is required than the whole numbers can provide.

In formal writing, it is better to write the number in letters when it is a short figure.


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