# Exponents and Powers - NCERT Class 8 Maths

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The chapter 12 begins with an introduction to Exponents and Powers with an example of the mass of the earth. Then, the powers with negative exponents are discussed with relevant examples.Following this,  the Laws of Exponents involving negative exponents are explained in the next section.In this section, the standard identities are also mentioned.The use of exponents to express small numbers in standard form is described in detail in the next section.Finally, comparing very large and very small numbers are briefly explained in the last part of the chapter.