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E:\Working\Focus_Learning\Math_Genius_3_(11-09-2024)\Open_Files\CHAP_01
\ 11-Sep-2024 Surender Prajapati Proof-4 Reader’s Sign _______________________ Date __________

Think and Answer
Write 'T' for true and 'F' for false in the given boxes.
1. The greatest 2-digit number is the predecessor of the smallest 3-digit number.
2. The smallest 2-digit number is the successor of the greatest 1-digit number.
3. The smallest 4-digit number is the successor of the smallest 3-digit number.
4. The greatest 3-digit number is the predecessor of the greatest 4-digit number.

eVeN aND oDD Numbers

even Numbers

All the numbers that can be made into pairs are called even numbers.

Here are 6 oranges, which have been kept in pairs.

So, 6 is an even number.

All the numbers that have 2, 4, 6, 8 and 0 in the ones place are even numbers.
For example: 52, 124, 520, 3008, etc.
odd Numbers

The numbers that cannot be made into pairs are called odd numbers.
Here are 7 oranges; out of them 6 have been kept in pairs and 1 orange is left unpaired.

It means 7 cannot be made into pairs.
So, 7 is an odd number.

All the numbers that have 1, 3, 5, 7 and 9 in the ones place are odd numbers.

For example: 29, 343, 695, 82, 71, etc.

Think and Answer
Is your class roll number even or odd?

Practice time 1e

1. Complete the following table.

Predecessor Number Successor

(a) 5,672
(b) 8,791

(c) 998
(d) 4,041
(e) 4,989

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