Ordinal number
From Wikipedia, the free encyclopedia
Ordinal numbers (or ordinals) are numbers that show something's order, for example: 1st, 2nd, 3rd, 4th, 5th.
Suppose a person has four different T-shirts, and then lays them in front of the person, from left to right.
- All to the left there is the red T-shirt
- Right of that is the blue one
- Then there is the yellow one
- And finally, all to the right is a white T-shirt
If the person then starts counting the shirts from the left, he would first see the red shirt. So the red shirt is the first T-shirt. The blue shirt is the second T-shirt. The yellow shirt is the third one, and the white T-shirt is the fourth one.
The first, second, third, and fourth in this case are ordinal numbers. They result from the fact that the person has many objects, and they give them an order (hence 'ordinal'). The person then simply counts those objects, and give the ordinal numbers to them.
