Grade 1 Math Ordinal Numbers
Ordinal Numbers
What is ordinal numbers?
The numbers that are used to define the positions (such as 1st
, 2nd , ……) 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 1st (First), 2nd
(Second), 3rd (Third) ……..
1. What is the short form of ‘fifth’?
a. 4th
b. 6th
c. 5th
d. 9th
Answer: c
2. Who is standing in the queue at the 3rd
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
|
2nd
|
second
|
|
10
|
ten
|
10th
|
tenth
|
|
12
|
twelve
|
12th
|
twelfth
|
|
14
|
fourteen
|
14th
|
fourteenth
|
|
17
|
seventeen
|
17th
|
seventeenth
|
|
9
|
nine
|
9th
|
ninth
|
|
5
|
five
|
5th
|
fifth
|
|
7
|
seven
|
7th
|
seventh
|
4. Who is standing in the queue at the 3rd
position from the right.
|
🕴
Charles |
🕴
Quang |
🕴
Joe |
🕴
Stormy |
Solution:
First, define the position from right to left:
|
🕴
Charles |
🕴
Quang |
🕴
Joe |
🕴
Stormy |
|
4th
|
←3rd
|
←2nd
|
←1st
|
So, Quang is standing in the queue at the 3rd position from
the right.
Answer:
Quang.
5. Which of the following wrongly written?
a. 1st – first
b. 4th –forth
c. 9th –ninth
d. 12th – twelfth
Answer:
4th – forth
[Correct: 4th - 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:
|
🐈
|
🐧
|
🦆
|
🐟
|
🐘
|
|
1st
|
2nd
|
3rd
|
4th
|
5th
|
So, 🦆 is in 3rd position of the given collection.
Answer: 3rd
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 – 17th
b. Nineteenth – 9th
c. Second – 2nd
d. Ninth – 19th
Answer: c