NCERT Solutions for Class 8 Maths Chapter 12 (Ex 12.1) Exponents and Powers


NCERT Solutions for Class 8 Chapter 12 Exponents and Powers -Free PDF Download

Free PDF download of NCERT Solutions Maths Class 8 Solutions Chapter 12 – Exponents and Powers solved by Expert Maths Teachers on CoolGyan.Org. All Chapter 12 – Exponents and Powers Questions with Solutions for NCERT to help you to revise complete Syllabus and Score More marks.
Maths Revision Notes for Class 8

Chapter NameExponents and Powers
ChapterChapter 12
ExerciseExercise 12.1
ClassClass 8
SubjectMaths NCERT Solutions
BoardCBSE
TEXTBOOKCBSE NCERT
CategoryNCERT Solutions

NCERT SOLVED


1.  Evaluate:

(i)  (ii)  (iii) 

Ans. (i)   = 

(ii)   

(iii)   = 

 = 32


2.  Simplify and express the result in power notation with positive exponent:

(i)    

(ii)  

(iii) 

(iv)   

(v) 

 Ans. (i)   =   

     

(ii)  

    

(iii)    

  

  

(iv)       

 =  =  

  

(v)     

  =    


3.  Find the value of:

(i)    

 (ii)     

(iii) 

(iv)   

(v) 

Ans.

 (i)   =         

 =     

     

(ii)       

 =    

 

    

(iii)

   

 = 4 + 9 + 16 = 29

(iv)       

(v)    

     


4.  Evaluate:

(i)    (ii) 

Ans. (i)       

     

(ii)    


5.  Find the value of  for which 

Ans. 

  

  

Comparing exponents both sides, we get

  

  

  


6.  Evaluate:

(i)  (ii) 

Ans.

(i)    

(ii)    

     

 =    


7.  Simplify:

(i)     

(ii) 

Ans. (i)  

 = 

(ii)  

 

   

 = 

= 1  1  3125  

= 3125