Ordinal numbers are the numbers that indicate the exact position of something or someone at a place. If the number of objects/persons are specified in a list: the position of the objects/persons is defined by ordinal numbers. The adjective terms which are used to denote the order of something/someone are 1st – First, 2nd-Second, 3rd-Third, 4th-Fourth, 5th-Fifth, 6th-Sixth, and so on. All these terms represent the ordinal numbers. Whereas the counting numbers are calledcardinal numbers, such as 0, 1, 2, 3, 4, 5, etc.
- Definition
- Real-life Examples
- Ordinal Numbers from 1 to 100
- Difference Between Cardinal, Nominal and Ordinal Numbers
- Chart
- Solved Examples
- Practice Questions
- FAQs
What are Ordinal Numbers?
An ordinal number is a type of number that is used to represent the position or rank of an object or a person. The sequence of ordinal numbers will vary depending on the parameters, based on which the positions are defined, such as size, weight, marks, etc. The ordinal numbers are also simply called ordinals.
Real-life Examples of Ordinal Numbers
- Ram came first in class
- Sarita was the third girl standing in a row
- Mohan stays on the fourth floor of the apartment
- The table is kept at the sixteenth position in the display of the shop
Ordinal Numbers 1 to 100
The complete list of ordinal numbers from 1 to 100 are provided below in two parts.
Ordinal Numbers 1 to 50
The list of ordinal numbers from 1 to 50 is given below:
| Ordinal Numbers 1 to 50 | ||||
| 1st: First | 11th: Eleventh | 21st: Twenty-First | 31st: Thirty-First | 41st: Forty-First |
| 2nd: Second | 12th: Twelfth | 22nd: Twenty-Second | 32nd: Thirty-Second | 42nd: Forty-Second |
| 3rd: Third | 13th: Thirteenth | 23rd: Twenty-Third | 33rd: Thirty-Third | 43rd: Forty-Third |
| 4th: Fourth | 14th: Fourteenth | 24th: Twenty-Fourth | 34th: Thirty-Fourth | 44th: Forty-Fourth |
| 5th: Fifth | 15th: Fifteenth | 25th: Twenty-Fifth | 35th: Thirty-Fifth | 45th: Forty-Fifth |
| 6th: Sixth | 16th: Sixteenth | 26th: Twenty-Sixth | 36th: Thirty-Sixth | 46th: Forty-Sixth |
| 7th: Seventh | 17th: Seventeenth | 27th: Twenty-Seventh | 37th: Thirty-Seventh | 47th: Forty-Seventh |
| 8th: Eighth | 18th: Eighteenth | 28th: Twenty-Eighth | 38th: Thirty-Eighth | 48th: Forty-Eighth |
| 9th: Ninth | 19th: Nineteenth | 29th: Twenty-Ninth | 39th: Thirty-Ninth | 49th: Forty-Ninth |
| 10th: Tenth | 20th: Twentieth | 30th: Thirtieth | 40th: Fortieth | 50th: Fiftieth |
Ordinal Numbers 51 to 100
The list of ordinal numbers from 51 to 100 is given below:
| Ordinal Numbers 51 to 100 | ||||
| 51st: Fifty-First | 61th: Sixty-First | 71st: Seventy-First | 81st: Eighty-First | 91st: Ninety-First |
| 52nd: Fifty-Second | 62nd: Sixty-Second | 72nd: Seventy-Second | 82nd: Eighty-Second | 92nd: Ninety-Second |
| 53rd: Fifty-Third | 63rd: Sixty-Third | 73rd: Seventy-Third | 83rd: Eighty-Third | 93rd: Ninety-Third |
| 54th: Fifty-Fourth | 64th: Sixty-Fourth | 74th: Seventy-Fourth | 84th: Eighty-Fourth | 94th: Ninety-Fourth |
| 55th: Fifty-Fifth | 65th: Sixty-Fifth | 75th: Seventy-Fifth | 85th: Eighty-Fifth | 95th: Ninety-Fifth |
| 56th: Fifty-Sixth | 66th: Sixty-Sixth | 76th: Seventy-Sixth | 86th: Eighty-Sixth | 96th: Ninety-Sixth |
| 57th: Fifty-Seventh | 67th: Sixty-Seventh | 77th: Seventy-Seventh | 87th: Eighty-Seventh | 97th: Ninety-Seventh |
| 58th: Fifty-Eighth | 68th: Sixty-Eighth | 78th: Seventy-Eighth | 88th: Eighty-Eighth | 98th: Ninety-Eighth |
| 59th: Fifty-Ninth | 69th: Sixty-Ninth | 79th: Seventy-Ninth | 89th: Eighty-Ninth | 99th: Ninety-Ninth |
| 60th: Sixtieth | 70th: Seventieth | 80th: Eightieth | 90th: Ninetieth | 100th: Hundredth |
Difference Between Cardinal, Nominal and Ordinal Numbers
Apart from ordinal numbers, the other two types of numbers, which are used to represent objects or people are:
- Cardinal Numbers
- Nominal Numbers
Cardinal Numbers: The counting numbers which are used to represent the number of objects or people are called Cardinal numbers. They are: One, Two, Three, Four, Five, Six, Seven, Eight, Nine, Ten and so on.
Example:
- There are eight men standing in a row.
- The basket contains ten apples.
Nominal Numbers: The numbers which are applied to name the objects in a group, are called nominal numbers. Using these numbers, it is easy to identify objects or a thing in a collection of things.
Example:
- Vehicles numbers like KA 05 1220, etc.
- Pin codes of different cities
- Player number in a match
Ordinal Numbers: The numbers that express the positions of an object or a person. The examples are:
- The white car is standing in the third position
- The city came second in drastic air pollution
- Mona won the medal of first position in the Olympiad
Ordinal Numbers Chart
The chart for cardinal and ordinal numbers from 1 to 20 is given below:
Related Articles
- Counting Numbers
- Numbers In Words
- Natural Numbers And Whole Numbers
- Real Numbers
Video Lesson on Numbers
Solved Examples
Example 1:
In the word, “MAGNIFICENT”, which is the fifth and seventh letter?
Solution:
MAGNIFICENT has eleven letters.
Both fifth and seventh position, in the word, has the same letter, i.e., I.
Fifth letter – I
Seventh letter – I
Example 2:
Aravind, Brinda, David, and Ellie are the students of a class, standing in a row, in the given order. Who is in the second position?
Solution:
IfAravind, Brinda, David, and Ellie are standing in the given order, then Brinda is in the second position.
Example 3:
Write the ordinal numbers from one to ten.
Solution:
The ordinal numbers from one to ten are:
- 1st – First
- 2nd – Second
- 3rd – Third
- 4th – Fourth
- 5th – Fifth
- 6th – Sixth
- 7th – Seventh
- 8th – Eighth
- 9th – Ninth
- 10th – Tenth
Practice Questions on Ordinal Numbers
- What is the fifth letter in the word “BEAUTIFUL”?
- In the word “MADAM”, find the first and last letters?
- “There are ten balls in a bag”. Find the 9th letter in the given sentence.
Frequently Asked Questions on Ordinal Numbers
Q1
What are ordinal number examples?
The numbers 1st, 2nd, 3rd, 4th, 5th, 6th, 7th,.. represent the position of students standing in a row. All these numbers are the examples of ordinal numbers.
Q2
What are ordinal numbers from 1 to 10?
The ordinal numbers from 1 to 10 are 1st – First, 2nd – Second, 3rd – Third, 4th – Fourth, 5th – Fifth, 6th – Sixth, 7th – Seventh, 8th – Eighth, 9th – Ninth and 10th – Tenth, respectively.
Q3
What are ordinal numbers in Maths?
Ordinal numbers are the numbers which indicate the exact position of something or someone at a place. All the ordinal numbers in Maths are natural numbers or counting numbers.
Q4
What is the ordinal number of 100?
The ordinal number of 100 is written as “one hundredth” or it can also be written as “the hundredth”. For example, Rahul is at the hundredth position in a class of 120 students, when classified based on the percentage in the exam.
Q5
Is 11 a cardinal number?
Yes, the number 11 is cardinal. As we know, the numbers such as 5, 6, 10, 11, 12,… are the cardinal numbers.
Q6
What is the ordinal number for 37?
The ordinal for the number 37 is thirty-seventh (37th), which is used to describe a person or thing in position number 37 of a sequence. For example, Meera got the 37th rank in her final exam.
