Page 19 - Revised Maths Wisdom Class - 2

Numbers up to 100 17

Ordinal Numbers

Ordinal numbers tell us about the order or position of something in counting. The

ordinal numbers from 1 to 30 are represented as below:

1 st First 11 th Eleventh 21 Twenty-first
st
2 nd Second 12 Twelfth 22 nd Twenty-second
th
3 rd Third 13 th Thirteenth 23 rd Twenty-third

4 th Fourth 14 th Fourteenth 24 th Twenty-fourth

5 Fifth 15 Fifteenth 25 Twenty-fifth
th
th
th
6 th Sixth 16 th Sixteenth 26 th Twenty-sixth
7 th Seventh 17 th Seventeenth 27 th Twenty-seventh

8 th Eighth 18 th Eighteenth 28 th Twenty-eighth

9 th Ninth 19 th Nineteenth 29 th Twenty-ninth
10 Tenth 20 th Twentieth 30 th Thirtieth
th

Tick () the twelfth bead. Tick () the thirteenth lollipop.
Cross (7) the fourth bead. Cross (7) the sixth one.

1 st

1 st

25 th

RIDDLE
RIDDLE

I am a 3-digit number that end with the digit 0.
I am the smallest 3-digit number what number am I? 20 th