NCERT Solutions for Exponents and Powers Exercise 12.2 Class 8 Maths

Exercise 12.2 Class 8 Maths: Every CBSE schools administers the Class 8 exams, which are significant in laying a strong foundation in learning Classes 9, 10, 11 and 12 syllabus. In CBSE Class 9, Chapter 12 is an extremely important chapter for competitive and school exams. Exponents and Powers is the title of the chapter. Ex 12.2 class 8 deals with the topic powers with negative exponents.

The answers presented here were developed by Embibe professionals to help ambitious students achieve high exam marks. These class 8 maths chapter 12 exercise 12.2 can be used by students to double-check their answers and assess their own performance during practice. Furthermore, the solutions provide students with a range of shortcuts and ways for solving issues. Read through the article to find out more about exercise 12.2 class 8 and its solutions!

Exercise 12.2 Class 8 Maths: Chapter Overview

Before we begin class 8 maths ex 12.2, pupils should have a good understanding of what the chapter covers. It is difficult for students to properly absorb the topics if there is no introduction to the chapter. As a result, let’s start with the table, which covers the sub-topics covered under exponents and powers.

Chapter Summary

We increase a number to power when we have to multiply it by itself repeatedly. This is referred to as the Exponent. The number of times we want to perform the multiplication operation is represented by the power in the exponent. When it comes to performing arithmetic operations, exponents have their own set of rules. We will study about powers, exponents, and their ancillary laws in this chapter. Students will discover new ideas, and this chapter will help them solidify their understanding of exponents and powers.

NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers: Key Features

• The language is clear and straightforward.
• Students’ confidence will be boosted thanks to NCERT Solutions.
• Subject specialists have gathered all of the exercise questions that may appear in your test in one spot.
• For quick revisions, all solutions are written in a simple and logical language.
• NCERT Solutions are beneficial for competitive test preparation.

Exercise 12.2 Class 8 Maths PDF

Class 8 maths 12.2 solutions maths is about powers with negative exponents. There is more to it, which students might discover by thoroughly doing the activities. We have provided a pdf download link for students to use.

Practice Exercise 12.2 For!

Q.1. Express the following number in usual form:
1.0001×109
1000100000
Solution: Given, 1.0001×109

To convert an exponential number, N×10a ,
i) multiply N by 10a if a is positive ii) divide N by 10a, if a is negative
1.0001×109=1.0001×1000000000=1000100000
Q.2. Express the following number in the usual form: 5.8×1012
5800000000000
Solution: Expressing the given number in the usual form as follows,

5.8×1012
=5.8×1000000000000 =5800000000000
Q.3. Express the following number in usual form:
3.61492×106
3614920
Solution: We need to express the given number in the usual form.

3.61492×106=361492100000×1000000
=361492105×106 Use the exponent rule aman=am-n =361492×106-5 =361492×101 =3614920

The Advantages of NCERT Questions and Answers

There are several advantages to tackling NCERT challenges, including the option to consult with topic experts for solutions. NCERT solutions for class 8 maths chapter 12 exercise 12.2 are included in this article. However, students should evaluate all issues and solutions equally. Here are some of the advantages of thoroughly reviewing the NCERT in-text questions and solutions:

Thorough Concept Understanding: For most students studying for board or entrance exams, NCERT books are their key source of data! This is due to the fact that NCERT textbooks cover the most difficult topics in the most detail. In-depth understanding is presented topic by topic. By answering NCERT questions, students obtain a thorough comprehension of the subject. When it comes to math, clarity is vital, and students will gain that clarity by answering the in-text solutions. Students should engage in extensive practice rounds to improve their math skills.

Know the Quality of Questions: Every year, the CBSE board administers board exams, which are typically challenging for students. This is due to an increase in the quality of queries. If a student solves the NCERT solutions and practices them on a regular basis, board exams can be easily passed. NCERT in-text questions make up the majority of questions on the Maths board exam.

Score Maximum Marks: NCERT in-text questions will assist a student earn the greatest possible mark by providing topic-by-topic clarity. Even if pupils do not have chance to practice the additional curriculum questions, answering NCERT questions is sufficient for good exam scores. Students will get topic-specific clarity as each topic is covered with activities.

The Best Means To Prepare For Competitive Exams: For those who wish to pass competitive exams, NCERT books are the best way to prepare. NCERT books can help you build a strong foundation for any subject’s themes. In the future, students will be able to master advanced topics with ease.

Better Way To Understand Topics: Topics are easily understood once students begin studying the in-text questions. The solutions are presented in a step-by-step fashion, making it easier for students to follow after they’ve gone over them again.

FAQs on Exercise 12.2 Class 8 Maths

Students will have a lot of questions once they start practicing math. The majority of students find it difficult. Overcoming these doubts, on the other hand, becomes a breeze with the right coaching! Here are the answers to a few of the most often asked questions:

Q.1: Where can I download the class 8 Exponents and Powers NCERT solutions for?
Ans: One can download the exercise 12.2 class 8 maths solutions from Embibe for. They provide the study materials, mock tests and video lessons, for as well. Students can download or view them for at anytime and practice! In fact, Embibe provides the students NCERT solutions from the subject experts for all the in-text exercises of every chapter. Students will have to do a sign up and explore the world of learning with Embibe!

Q.2: What are the few important topics under the Exponents and Powers?
Ans: A few important topics under Exponents and Powers are:

• Powers and Exponents
• Powers with Negative Exponents
• Visualising Powers and Exponents
• Expanding a Rational Number Using Powers
• Exponents with like Bases
• Power of a Power
• Exponents with Unlike Bases and Same Exponent
• Inter Conversion between Standard and Normal Forms

Q.3:  Can you give one solved example for Exponents and Powers?
Ans: Express the number appearing in the following statement in standard form:
Size of a plant cell is 0.00001275 m.
Solution: A number expressed in the form of N×10m, where N is a terminating decimal such that 1≤N<10 and m is any

integer, is said to be in standard form.
Given, Size of a plant cell is 0.00001275 m.
0.00001275=1275100000000 =1275108 =1.275×1000×10-8 =1.275×103×10-8 =1.275×103+-8 =1.275×10-5

Q.4:  Which topic has the maximum number of questions asked in chapter 12 class 8?
Ans: Maximum number of questions are asked from the topics:

• Expanding a Rational Number Using Powers
• Exponents with like Bases
• Power of a Power
• Exponents with Unlike Bases and Same Exponent

Q.5: How can I make my kid prepare well for class 8 exams?
Ans: Do not stress your kids to study hard all the time instead try to start making them practice as early as possible. Make them attend topic-wise mock tests from a reliable online source like Embibe. Despite the fact that CBSE does not grade students in Class 8, learning the themes is critical because these topics in Class 8 math serve as the foundation for students in Classes 9, 10, 11, and 12. As a result, by practicing, you will gain a thorough understanding of the topics. NCERT in-text questions and solutions are to be solved. Make notes and practice the topics that are difficult at first. Above important, do not skip any NCERT questions.

We hope that the article on Exercise 2.6 Class 8 will answer most of the students’ questions. If you have any further questions, please leave a comment below and we will gladly assist you in any way we can!