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1. An example of a whole number is

 
 
 
 

2.

 
 
 
 

3. is

 
 
 
 

4. Addition of expression  and  is

 
 
 
 

5. Given a rational number – . This rational number can also be known as

 
 
 
 

6. To rationalise the denominator of the expression  , we multiply and divide by

 
 
 
 

7. On simplifying  we get

 
 
 
 

8. If the decimal representation of a number is non-terminating non-recurring, then the number is

 
 
 
 

9.

 A rational number between  is

 
 
 
 

10. is

 
 
 
 

11. In meteorological department, temperature is measured as a

 
 
 
 

12. The product of any two irrational numbers is

 
 
 
 

13.  is equal to

 
 
 
 

14. An example of a whole number is

 
 
 
 

15.

 
 
 
 

16.

 
 
 
 

17.  is equal to

 
 
 
 

18. In meteorological department, temperature is measured as a

 
 
 
 

19. On simplifying , we get

 
 
 
 

20. Every point on a number line

 
 
 
 

21.   is equal to

 
 
 
 

22. The number 1.101001000100001… is

 
 
 
 

23. The value of  is equal to

 
 
 
 

24. is

 
 
 
 

25.

 The rational number can also be written as

 
 
 
 

26. Irrational number between 1.011243 … and 1.012243 … is

 
 
 
 

27. For rationalising the denominator of the expression , we multiply and divide by

 
 
 
 

28. A rational number equivalent to  is

 
 
 
 

29.  is equal to

 
 
 
 

30. On adding ,  we get

 
 
 
 

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