Ordinal numbers to 100th
key notes :
🧨Definition of Ordinal Numbers:
- Ordinal numbers show the position or order of things. For example, 1st, 2nd, 3rd, etc..
🎇Understanding the Concept:
🎟 ordinal numbers tell us the order or sequence of objects, people, or events. For instance, in a race, we use ordinal numbers to say who finished first, second, third, and so on.

🎇Ordinal Numbers from 1st to 100th:
first | 1st |
second | 2nd |
third | 3rd |
fourth | 4th |
fifth | 5th |
sixth | 6th |
seventh | 7th |
eighth | 8th |
ninth | 9th |
tenth | 10th |
eleventh | 11th |
twelfth | 12th |
thirteenth | 13th |
fourteenth | 14th |
fifteenth | 15th |
sixteenth | 16th |
seventeenth | 17th |
eighteenth | 18th |
nineteenth | 19th |
twentieth | 20th |
twenty-first | 21st |
twenty-second | 22nd |
twenty-third | 23rd |
twenty-fourth | 24th |
thirtieth | 30th |
thirty-first | 31st |
fortieth | 40th |
fiftieth | 50th |
sixtieth | 60th |
seventieth | 70th |
eightieth | 80th |
ninetieth | 90th |
hundredth | 100th |
Learn with an example
Which of the following are cardinal numbers? (There may be more than one.)
- 81
- twenty-three
- seventy-five
- 73
These are all cardinal numbers:
- 81
- twenty-three
- seventy-five
- 73
Which of the following are cardinal numbers? (There may be more than one.)
- seventy
- 73
- 10
- eighty-two
These are all cardinal numbers:
- seventy
- 73
- 10
- eighty-two
Which of the following are cardinal numbers? (There may be more than one.)
- 53
- sixty
- 18
- fifty-six
These are all cardinal numbers:
- 53
- sixty
- 18
- fifty-six
Let’s practice!