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1.  is equal to

 
 
 
 

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

 
 
 
 

3. Irrational number between 1.011243 … and 1.012243 … is

 
 
 
 

4. An example of a whole number is

 
 
 
 

5. On adding ,  we get

 
 
 
 

6. is

 
 
 
 

7.

 
 
 
 

8.

 
 
 
 

9. In meteorological department, temperature is measured as a

 
 
 
 

10.

 A rational number between  is

 
 
 
 

11.

 
 
 
 

12. The product of any two irrational numbers is

 
 
 
 

13. is

 
 
 
 

14. A rational number equivalent to  is

 
 
 
 

15. On simplifying , we get

 
 
 
 

16. An example of a whole number is

 
 
 
 

17. In meteorological department, temperature is measured as a

 
 
 
 

18.   is equal to

 
 
 
 

19.  is equal to

 
 
 
 

20. The value of  is equal to

 
 
 
 

21.

 The rational number can also be written as

 
 
 
 

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

 
 
 
 

23. Addition of expression  and  is

 
 
 
 

24. The number 1.101001000100001… is

 
 
 
 

25. On simplifying  we get

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. is

 
 
 
 

29. Every point on a number line

 
 
 
 

30.  is equal to

 
 
 
 

Question 1 of 30