# CBSE Class 8 Maths Revision Notes Chapter 12

## CBSE Class 8 Mathematics Revision Notes Chapter 12 – Exponents and Powers

In these Class 8 Mathematics chapter 12 notes, students will learn about exponents and power. In addition, in these  Class 8 chapter 12 Mathematics notes, students will get to know the significant details of the chapter that are important for their final examination. Along with Chapter 12 Mathematics Class 8 notes, Extramarks will provide students with essential questions that can be asked to prepare them quickly. Moreover, Class 8 Mathematics notes chapter 12 will be a student’s last-minute revision guide providing all the necessary information. These notes are based on the updated and the latest CBSE syllabus.

Here are the exponent laws that are applicable to the numbers with exponents.

1. aman=am+n
2. aman=am-n
3. (am)n=amn
4. ambm=(ab)m
5. a0=1
6. ambm=abm
• Small values in standard form can be expressed using negative exponents. To express a small number in standard form, exponents are used.
• Extremely large and very small numbers can both be expressed using a standard form.
• Standard form is another term for scientific notation form.
• If a decimal number is named m, where 1 m<10 and n is either a negative or positive integer, then m10n can be said to be in standard form. For instance, 150,000,000,000 = 1.51011 is in standard form.
• It is highly helpful to use exponential notation to indicate repeated multiplication of the same value. For each non-zero rational integer “a” and a natural number “n,” the product a × a × a × a × a… × a (n times)= an.
• It is referred to as the nth power of “a” and is written as “a” raised to the power “n.” The rational number n serves as the exponent, while the rational number “a” serves as the base.

### Key Features of CBSE Class 8 Mathematics Revision Notes for Chapter 12 Exponents and Powers

Given below are the key features of our revision notes crafted by experts for Mathematics Chapter 12 to know why you should refer to them during your exam preparation.

• Extramarks’ revision notes on Class 8 Mathematics Chapter 12 are easy to understand and specially made to help students go through the chapter quickly before their examination.
• By using our detailed Math CBSE revision notes, students will be able to remember and understand all the concepts related to exponents and powers.
• The team of expert teachers has made these revision notes while making sure that the notes are precise and free of any calculation mistakes. The CBSE extra questions in these notes are based on NCERT books and the CBSE syllabus
• The notes are complete and cover all the topics and subtopics of the chapter, as per exam guidelines and the updated CBSE syllabus.
• Download the CBSE Revision Notes for Class 8 Mathematics Chapter 12 – Exponents and Powers for free in PDF format. Thus, students can study them without paying.

The Class 8 CBSE Mathematics Chapter 12 – Exponents and Powers revision notes are a wonderful study resource for students who wish to increase their preparation level or want something for last-minute revision that is concise, dependable, error-free, and contains all the topics of this chapter. These Chapter 12 Class 8 notes also contain important questions and formulas related to this chapter. The questions in these notes are based on CBSE’s previous year’s question papers.

So, study these notes to solve any question from this CBSE Class 8 Mathematics Chapter 12. Once you go through these notes, you can easily solve CBSE sample papers to test your understanding.