Cardinal numbers
Cardinal numbers are the numbers one, two, three, four and so on, and are used to answer the question:- How many?
The majority do not decline - apart from one, two, three, 200, 300, 400, 500, 600, 700, 800, 900 and 1000 (which declines in the plural).
| one | unus |
| two | duo |
| three | tres |
| four | quattuor |
| five | quinque |
| six | sex |
| seven | septem |
| eight | octo |
| nine | novem |
| ten | decem |
| eleven | undecim |
| twelve | duodecim |
| thirteen | tredecim |
| fourteen | quattuordecim |
| fifteen | quindecim |
| sixteen | sedecim |
| seventeen | septendecim |
| eighteen | duedeveginti |
| nineteen | uneviginti |
| twenty | viginti |
| thirty | triginta |
| forty | quadraginta |
| fifty | quinquaginta |
| sixty | sexaginta |
| seventy | septuaginta |
| eighty | octoginta |
| ninety | nonaginta |