An ordinal number is a number that names the order or place of an object in a set.

 

The colored blocks show the ordinal numbers from 1st to 5th.

  

Position in line

Ordinal number

 first

 second

 third

 fourth

 fifth

The table below shows colored circles in order from 1st to 10th.

Position in line

Ordinal number name

first

second

third

fourth

fifth

sixth

seventh

eighth

ninth

tenth

 
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