Chapter 11 Class 7 Exponents and Powers

Master Chapter 11 Class 7 Exponents and Powers with comprehensive NCERT Solutions, Practice Questions, MCQs, Sample Papers, Case Based Questions, and Video lessons.

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Serial order wise

Ex 11.1
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Ex 11.2
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Ex 11.3
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Examples
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Concept wise

Exponents
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Finding which is greater
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Prime factorisation
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Power of 1 and -1
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Negative Exponents and 0 Exponent
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Law of exponents
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Writing numbers as Powers of 10
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Standard Form
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Get solutions of all NCERT Exercise questions and examples free at Teachoo. Answers to each and every question is provided in a step-by-step easy to understand way. Concepts are also explained before doing the questions

 

In this chapter, we will learn

  • What are exponents
  • Finding number when numbers are given as power
  • Finding greater number when numbers are expressed in power
  • Writing numbers as number with power using prime factorisation
  • Finding powers of negative numbers - (-1)Odd number = -1 & (-1)Even number = 1
  • Discussing Law of Exponents
    • Multiplying powers with same base (am × an = am + n )
    • Dividing Powers with the Same Base (am ÷ an = am - n )
    • Taking power of power ( (am)n = am × n )
    • Dividing Powers with the Same Exponents (am ÷ bm = (a/b)m
    • Numbers with exponent zero (a0 = 1)
  • Expressing numbers in Standard Form

 

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