Exercise 2.1
1. Which of the statements are true (T) and which are false (F). Correct the false statements.
There is a natural number that has no predecessor.
Zero is the smallest whole number.
All whole numbers are natural numbers.
A whole number that lies on the number line lies to the right side of another number is the greater number.
A whole number on the left of another number on the number line, is greater.
We can't show the smallest whole number on the number line.
We can show the greatest whole number on the number line.
True
False
2. How many whole numbers are there between 27 and 46?
To find how many whole numbers are there between 27 and 46, we
The numbers between 27 and 46 are:
Thus, there are
3. Find the following using number line.
(i) 6 + 7 + 7
(ii) 18 - 9
(iii) 5 × 3
4. In each pair, state which whole number on the number line is on the right of the other number.
(i) 895 ; 239 :
(ii) 1001 ; 10001:
(iii) 10015678 ; 284013:
We have found all the answers.
5. Mark the smallest whole number on the number line.
6. Choose the appropriate symbol from < or >:
(i) 8
(ii) 5
(iii) 0
(iv) 10
7. Place the successor of 11 and predecessor of 5 on the number line.