Cardinal numbers
The numbers which give us the exact quantity of an object are called cardinal numbers. In other words, cardinal numbers answer “How many?”
For instance: The given picture shows 4 cars in a parking lot. Hence, 4 or ‘four’ here is a cardinal number.
Ordinal numbers
The numbers which give us the exact position of an object are called ordinal numbers. Ordinal numbers tell the position of an object rather than their quantity.
For instance:
Example 1 The given picture shows different floors in a building. We can use ordinal numbers to define their position.
The numbers 1st(First), 2nd(Second), 3rd(Third), 4th(Fourth), 5th(Fifth), 6th(Sixth), 7th(Seventh), 8th(Eighth), 9th(Ninth) and 10th(Tenth) tell the position of different floors in the building. Hence, all of them are ordinal numbers.
Example 2The given picture shows some athletes competing in a 400 m race. We can use ordinal numbers to define their position.
The numbers 1st(First), 2nd(Second), 3rd(Third), 4th(Fourth), 5th(Fifth), 6th(Sixth), 7th(Seventh), 8th(Eighth), 9th(Ninth) and 10th(Tenth) tell the position of different athletes in the race. Hence, all of them are ordinal numbers.
Comparison Chart: Ordinal Numbers v/s Cardinal Numbers
Cardinal Numbers 
Ordinal Numbers 

1 
One 
1st 
First 
2 
Two 
2nd 
Second 
3 
Three 
3rd 
Third 
4 
Four 
4th 
Fourth 
5 
Five 
5th 
Fifth 
6 
Six 
6th 
Sixth 
7 
Seven 
7th 
Seventh 
8 
Eight 
8th 
Eighth 
9 
Nine 
9th 
Ninth 
10 
Ten 
10th 
Tenth 
11 
Eleven 
11th 
Eleventh 
12 
Twelve 
12th 
Twelfth 
13 
Thirteen 
13th 
Thirteenth 
14 
Fourteen 
14th 
Fourteenth 
15 
Fifteen 
15th 
Fifteenth 
Fun Fact
