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2. Circle ( ) the even numbers. One has been done for you.

11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30

3. Circle ( ) the odd numbers. One has been done for you.

26 27 28 29 30 31 32 33 34 35

36 37 38 39 40 41 42 43 44 45

4. Write the even numbers that comes between:

(a) 30 and 40 ___________________________________________

(b) 61 and 73 ___________________________________________

5. Write the odd numbers that comes between:

(a) 50 and 60 ___________________________________________

(b) 79 and 91 ___________________________________________

ORDINaL NUMBERS

We use numbers to tell the
position of things.

Here, 10 animals are in a queue

to perform in the circus. Let us 2nd 4th 6th 8th
have a look at the positions of (second) (fourth) (sixth) (eighth)

these animals.

The numbers such as first,
second, third, ... which tell us

the position of an object in a
10th
9th
3rd
1st
7th
5th
collection, are called ordinal (first) (third) (fifth) (seventh) (ninth) (tenth)
numbers.
The numbers which are used to say how many Get it right!
of something, such as one (1), two (2), three Forth 7 Fourth 3

(3), four (4), ... are called cardinal numbers. Nineth 7 Ninth 3

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