ORDINAL NUMBERS
Definition Of Ordinal Numbers
Ordinal Numbers are used to give the place or position of an object. For example first, second, third etc.
More About Ordinal Numbers
First, second, third, etc. are also represented as 1st, 2nd, 3rd, etc. respectively.
Only whole numbers are used to represent ordinal numbers.
Example of Ordinal Numbers
The figure given above shows that Apple is at 1st position, Orange 2nd, Pear 3rd, Mango 4th, and Strawberry at 5th position.
Video Examples: Ordinal Numbers
Solved Example on Ordinal Numbers
Ques: Identify the nineteenth number.
Choices:
A. 12
B. 19
C. 8
D. 15
Correct Answer: A
Solution:
Step 1: Count the number of boxes.
Step 2: There are 20 boxes.
Step 3: The number present in the nineteenth box is 12.
Step 4: So, the nineteenth number is 12.
Quick Summary
- Ordinal numbers denote position in a sequence.
- Examples include 1st, 2nd, 3rd, etc.
- They are used to describe the order of items.
🍎 Teacher Insights
Use real-world examples like lining up in a row or the order of runners in a race to illustrate ordinal numbers.🎓 Prerequisites
- Cardinal Numbers
- Counting
Check Your Knowledge
Q1: What is the 3rd letter in the alphabet?
Q2: Which number comes second in the sequence: 5, 2, 9, 1?
Frequently Asked Questions
Q: What is the difference between ordinal and cardinal numbers?
A: Cardinal numbers tell you how many of something there are (one, two, three), while ordinal numbers tell you the position or order (first, second, third).
Q: How do you write ordinal numbers?
A: Ordinal numbers are written as numbers followed by suffixes like 'st', 'nd', 'rd', and 'th'.