Home / NCERT Solution / NCERT Solution for Class 8 / NCERT Solutions for Class 8 Maths
Exponents and Powers Class 8 Extra Questions
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Exercise 12.1
Ex 12.1 Class 8 Maths Question 1.
Evaluate:
(i) 3-2
(ii) (-4)-2
(iii) (12)-5
Solution:
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 1 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q1](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-Q1.png)
Ex 12.1 Class 8 Maths Question 2.
Simplify and express the result in power notation with a positive exponent.
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 2 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q2](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-Q2.png)
Solution:
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 3 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q2.1](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-Q2.1.png)
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 4 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q2.2](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-Q2.2.png)
Ex 12.1 Class 8 Maths Question 3.
Find the value of
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 5 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q3 1](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-Q3-1.png)
Solution:
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 6 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q3.1](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-Q3.1.png)
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 7 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q3.2](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-Q3.2.png)
Ex 12.1 Class 8 Maths Question 4.
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 8 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q4](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-Q4.png)
Solution:
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 9 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q4.1](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-Q4.1.png)
Ex 12.1 Class 8 Maths Question 5.
Find the value of m for which 5m ÷ 5-3 = 55.
Solution:
5m ÷ 5-3 = 55
⇒ 5m-(-3) = 55 [∵ am ÷ an = am-n]
⇒ 5m+3 = 55
Comparing the powers of equal bases, we have
m + 3 = 5
m = 5 – 3 = 2, i.e., m = 2
Ex 12.1 Class 8 Maths Question 6.
Evaluate:
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 10 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q6](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-Q6.png)
Solution:
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 11 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q6.1](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-Q6.1.png)
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 12 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q6.2](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-Q6.2.png)
Ex 12.1 Class 8 Maths Question 7.
Simplify:
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 13 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q7](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-Q7.png)
Solution:
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 14 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q7.1](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-Q7.1.png)
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 15 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 q 1](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-q-1.png)
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 16 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 q 2](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-q-2.png)
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 17 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q3](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-Q3.png)
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 18 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 q 4](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-q-4.png)
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 19 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 q 5](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-q-5.png)
![NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 20 NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 q 6](https://www.educationidol.in/wp-content/uploads/2022/10/NCERT-Solutions-for-Class-8-Maths-Chapter-12-Exponents-and-Powers-Ex-12.1-q-6.png)
EducationIdol are provided study materials for Class 8 Maths Chapter 12, NCERT solutions for Class 8 Maths Chapter 12 revision notes, NCERT solutions for Class 8 Maths Chapter 12 question papers, NCERT solutions for Class 8 Maths Chapter 12 sample papers, NCERT solutions for Class 8 Maths Chapter 12 syllabus and NCERT solutions for Class 8 Maths Chapter 12 important questions. Students can prepare and score well using education idol study materials.