Grade 1 Math Ordinal Numbers
Ordinal Numbers
What is ordinal numbers?
The numbers that are used to define the positions (such as 1^{st}
, 2^{nd} , ……) or rank or sequence of something.
Example: We can define the position of students as per their exam or
sports results. And there we use the sequence 1^{st} (First), 2^{nd}
(Second), 3^{rd} (Third) ……..
1. What is the short form of ‘fifth’?
a. 4^{th}
b. 6^{th}
c. 5^{th}
d. 9^{th}
Answer: c
2. Who is standing in the queue at the 3^{rd}
position from the left?
🐘 🐒 🐄 🐈
a. Elephant
b. Monkey
c. Cow
d. Cat
Answer: c
3. Write the ordinal numbers of the following cardinal
numbers.
2,10,12,14,17,9,5,7
Answer:
Cardinal Number

Ordinal Number


2

two

2^{nd}

second

10

ten

10^{th}

tenth

12

twelve

12^{th}

twelfth

14

fourteen

14^{th}

fourteenth

17

seventeen

17^{th}

seventeenth

9

nine

9^{th}

ninth

5

five

5^{th}

fifth

7

seven

7^{th}

seventh

4. Who is standing in the queue at the 3^{rd}
position from the right.
🕴
Charles 
🕴
Quang 
🕴
Joe 
🕴
Stormy 
Solution:
First, define the position from right to left:
🕴
Charles 
🕴
Quang 
🕴
Joe 
🕴
Stormy 
4th

←3^{rd}

←2^{nd}

←1^{st}

So, Quang is standing in the queue at the 3^{rd} position from
the right.
Answer:
Quang.
5. Which of the following wrongly written?
a. 1^{st} – first
b. 4^{th} –forth
c. 9^{th} –ninth
d. 12^{th} – twelfth
Answer:
4^{th} – forth
[Correct: 4^{th}  fourth]
6. What is the ordinal position of 🦆 in the given collection from the left?
🐈

🐧

🦆

🐟

🐘

Solution:
Define the position left to right of the given collection:
🐈

🐧

🦆

🐟

🐘

1^{st}

2^{nd}

3^{rd}

4^{th}

5^{th}

So, 🦆 is in 3^{rd} position of the given collection.
Answer: 3^{rd}
7. Look at the picture below that shows the different stages of human life. Now fill in the blanks.
(a) _______ is the first stage of
human life.
(b) Adolescence is the _______ stage of human life.
(c) ________ is the last stage of human life.
(d) The _______ stage of human life is _______.
Answer:
(a) Childhood
(b) second
(c) Old age
(d) fourth, adulthood.
8. Which of the following is correctly matched?
a. Seventh – 17^{th}
b. Nineteenth – 9^{th}
c. Second – 2^{nd}
d. Ninth – 19^{th}
Answer: c