We use numbers in many situations of our lives, for example, when we have to say the hour, the date, our birthday, our phone number, distances, our age, our weight or height, prices (or any money account), when we do math exercices, sudoku games, etc.
However, there are two different ways to count, and they are used in different scenarios: with ordinal numbers and cardinal numbers.
Cardinal numbers: we use them in most situations and they go like this:
| 1 | one | 11 | eleven | 21 | twenty-one | 31 | thirty-one |
| 2 | two | 12 | twelve | 22 | twenty-two | 40 | forty |
| 3 | three | 13 | thirteen | 23 | twenty-three | 50 | fifty |
| 4 | four | 14 | fourteen | 24 | twenty-four | 60 | sixty |
| 5 | five | 15 | fifteen | 25 | twenty-five | 70 | seventy |
| 6 | six | 16 | sixteen | 26 | twenty-six | 80 | eighty |
| 7 | seven | 17 | seventeen | 27 | twenty-seven | 90 | ninety |
| 8 | eight | 18 | eighteen | 28 | twenty-eight | 100 | a/one hundred |
| 9 | nine | 19 | nineteen | 29 | twenty-nine | 1,000 | a/one thousand |
| 10 | ten | 20 | twenty | 30 | thirty | 1,000,000 | a/one million |
In this web page we can practice the writing of cardinal numbers. They ask us to spell the number they give us:
Ordinal numbers: they are less used than the cardinal numbers, and we use them to say dates, etc. They go like this:
| 1 | st | first | 11 | th | eleventh | 21 | st | twenty-first | 31 | st | thirty-first | ||
| 2 | nd | second | 12 | th | twelfth | 22 | nd | twenty-second | 40 | th | fortieth | ||
| 3 | rd | third | 13 | th | thirteenth | 23 | rd | twenty-third | 50 | th | fiftieth | ||
| 4 | th | fourth | 14 | th | fourteenth | 24 | th | twenty-fourth | 60 | th | sixtieth | ||
| 5 | th | fifth | 15 | th | fifteenth | 25 | th | twenty-fifth | 70 | th | seventieth | ||
| 6 | th | sixth | 16 | th | sixteenth | 26 | th | twenty-sixth | 80 | th | eightieth | ||
| 7 | th | seventh | 17 | th | seventeenth | 27 | th | twenty-seventh | 90 | th | ninetieth | ||
| 8 | th | eighth | 18 | th | eighteenth | 28 | th | twenty-eighth | 100 | th | one hundredth | ||
| 9 | th | ninth | 19 | th | nineteenth | 29 | th | twenty-ninth | 1,000 | th | one thousandth | ||
| 10 | th | tenth | 20 | th | twentieth | 30 | th | thirtieth | 1,000,000 | th | one millionth | ||
In this web page we can practice the writing of ordinal numbers. They ask us to spell the number they give us:
Also, there's another web page where we can listen the pronuntiation of both types of numbers:
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