0

Guest

Courses New
Book a free demo of live class

NCERT Extra Questions for Class 8 Maths Chapter 12 Exponents and Powers

 

Are you looking for NCERT Extra Questions for Class 8 Maths Chapter 12 Exponents and Powers? askIITians has got the best set of questions for you. If you want to score full marks in this chapter, you must not rely on the NCERT exercises and solved examples only. You need to test your knowledge by practising different kinds of questions that can be asked from this chapter and for that, you need some extra questions. 

 

The NCERT Extra Questions for Class 8 Maths Chapter 12 Exponents and Powers prepared by Maths experts are the best study guide for you. These questions are based on the latest CBSE syllabus and exam pattern for Class 8 Maths. They include questions based on all the NCERT exercises of the chapter, making it much easier for you to solidify your concepts related to exponents and powers. Not only this, but we have also provided stepwise solutions for every extra question so that there isn’t any confusion. 

About NCERT Extra Questions for Class 8 Maths Chapter 12 Exponents and Powers

 

The NCERT Chapter 12 Exponents and Powers is based on topics like powers with negative numbers, laws of exponents, using exponents to represent small numbers in standard form and comparing very large and very small numbers. There are just 2 exercises in this chapter whose solutions you can find on our website. You must practice these NCERT exercises before solving the extra questions of this chapter. 

 

Important points related to NCERT Class 8 Maths Chapter 12 Exponents and Powers:

 

Negative power of a number: For any non-zero integer a, a-m = 1/ am where m is a positive integer and a-m is the multiplicative inverse of am. 

Laws of exponents: 

  • am × an = am+n
  • am ÷ an = am-n
  • (am)n = amn
  • a0 = 1
  • am ×bm =(ab)m

 

Expressing small numbers in standard form using exponents

 

Standard form to write the natural numbers like abc000000...

Step 1: First of all count the number of digits from left leaving only the first digit.

Step 2: To write it in exponent or standard form, write down the first digit.

Step 3: If there are more digits in the number then put a decimal after the first digit and then write down the other digits until the zero comes. And if there are no digits after the first digit then skip this step.

Step 4: Now place a multiplication sign and then write down the counted digits in the first step as the exponent to the base number 10.

 

Standard form to write decimal numbers like 0.00000…..abc. 

Step 1: First of all count the number of digits from the decimal point to the last digit.

Step 2: If there is only one digit after the zeros then simply write down that digit. Place a multiplication sign and write down the counted digits in step-1 with a negative sign as the exponent to base number 10.

Step 3: If there are two or more non-zero digits at the end of the number. Then, write down the digits followed by a decimal point after the first digit and the other non-zero digits.

Step 4: Now calculate the number of digits in the first step and minus the number of digits appearing after the decimal point.

Step 5: Place a multiplication sign and write down the counted digits in step-4 with a negative sign as an exponent to base number 10.

Download Free NCERT Extra Questions and Solutions for Class 8 Maths Chapter 12 Exponents and Powers

 

Exponents and powers is an important chapter not only from the point of view of the Class 8 Maths final exam but also for higher studies and competitive tests. Exponents and powers are used in the field of Science where you have to use the logarithmic scale and Richter scales. They are also used for writing large and small numbers as you have learned in the NCERT chapter. Exponents and powers are also used for measuring distances, areas or perimeters. For instance, the area of your school can be measured using exponents and powers. 

 

You must practice such an important topic very well so that you do not have to study it from the basics in every subsequent class. Download our NCERT extra questions and solutions for exponents and powers today and solidify your concepts. Here are some distinguishing features of our NCERT extra questions for Class 8 Maths Chapter 12 Exponents and Powers: 

  • The NCERT extra questions and solutions for Exponents and Powers are created by askIITians Maths experts who are well-versed with Class 8 Maths syllabus and exam pattern. 
  • We have included a variety of questions from short answer type to long answer type and higher-order thinking skills so that you are prepared to handle any kind of questions related to powers and exponents in the exam. 
  • The extra questions are followed by stepwise solutions so that you can refer to them in case of any doubt or confusion. We recommend you first try to solve the question by yourself and test your knowledge. 
  • The extra questions and solutions pdf is available for free and can be downloaded from the askIITians website at any time. This way you can study these extra questions independently, at your own pace. 
  • The NCERT Extra Questions for Class 8 Maths Chapter 12 Exponents and Powers are based on the latest CBSE Class 8 Maths syllabus to ensure that you are well-prepared for your Maths exam. 

NCERT Extra Questions for Class 8 Maths Chapter 12 Exponents and Powers FAQs

 

  1. Where can I find the NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers? 

 

You can find the stepwise NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers on the askIITians website. Our Maths experts have solved the NCERT exercises of this chapter for your reference. 

 

  1. What are the important topics covered in NCERT Extra Questions for Class 8 Maths Chapter 12 Exponents and Powers? 

 

Our NCERT extra questions and solutions include topics like powers with negative numbers, laws of exponents, using exponents to represent small numbers in standard form and comparing very large and very small numbers. 

 

  1. How can I improve my understanding of the Exponents and Powers chapter? 

 

You can refer to our Class 8 Maths chapter-wise revision notes, sample papers, worksheets and mind map to learn the different concepts of exponents and powers. You can also enrol in our online live classes where you can study from one of our experts and clarify your doubts. 


TOP Your EXAMS!

Upto 50% Scholarship on Live Classes

Course Features

  • Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution

Book a Live class Live courses Ask question
r