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Ordinal numbers

O rdinal numbers tell the position or in relation to other numbers.

1st 2nd 3rd 4th 5th 6th 7th 8th 9th
first second third fourth fifth sixth seventh eighth ninth

Example 1 Write the missing numbers in the .



123 567 9

⑵ 2 45

1

68

2. Ordering numbers 15
   13   14   15   16   17   18   19   20   21   22   23