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Chapter2 6 ½ – Ordinal Numbers
1 st 2 nd 3 rd 4 th 5 th 6 th 7 th 8 th 9 th 10 th
Ordinal numbers tell us about the position
of a number in a collection.
1st, 2nd, 3rd or first, second, third... are
called ordinal numbers.
Order of the months Writing
of the year the order
January First 1 First 1 st
February Second 2 Second 2 nd
Order of the days
March Third of the week. 3 Third 3 rd
Sunday First
April Fourth 4 Fourth 4 th
Monday Second
May Fifth 5 Fifth 5 th
Tuesday Third
June Sixth 6 Sixth 6 th
Wednesday Fourth
July Seventh 7 Seventh 7 th
Thursday Fifth
August Eighth 8 Eighth 8 th
Friday Sixth
September Ninth 9 Ninth 9 th
Saturday Seventh
October Tenth 10 Tenth 10 th
November Eleventh 11 Eleventh 11 th
December Twelfth 12 Twelfth 12 th
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Mathematics In Focus - 1
