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E:\Working\Orange_Education\Math_Genius_2\Open_Files\Chap_01
\ 26-Sep-2025 Bharat Arora Proof-10 Reader’s Sign _______________________ Date __________
All the numbers that can be put in pairs, that is, in groups of 2s are called even
numbers.
All the numbers that cannot be put in pairs, that is, in groups of 2s are called odd
numbers.
For example: Praveen has 8 marbles. He can
make pairs of these taking 2 marbles at a time.
No marble is left, so 8 is an even number.
Sid has 7 marbles. Can he make pairs of marbles
taking 2 marbles at a time?
No, 1 marble is left unpaired. So, 7 is an odd number.
Odd
1 3 5 7 9
An odd number has 1, 3, 5, 7 or 9 in the ones place.
even
2 4 6 8 10
An even number has 0, 2, 4, 6 or 8 in the ones place.
Practice time 1G
1. Circle ( ) the objects in pairs to find even and odd numbers. One has been
done for you.
(a) 11 pencils Odd
(b)
(c)
(d)
Mathematics-2 27
