Exponents and Powers Class 7 Notes: Chapter 13

Introduction

Powers and Exponents

Powers amd Exponents

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Powers with negative exponents

Powers with Negative Exponents

Visualising Exponents

Visualising powers and exponents

Visualising Power

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Laws of Exponents

Powers with like bases

Power with Like Bases

Power of a Power

Power of a Power

Exponent Zero

Exponent Zero

Powers with unlike bases and same exponent

Powers with Unlike Bases

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Uses of Exponents

Expanding a rational number using powers

Expanding a rational number using powers

Inter conversion between standard and normal forms

Inter conversion between standard and normal forms

Comparision of quantities using exponents

Comparision of quantities using exponents

Frequently asked Questions on CBSE Class 7 Maths Notes Chapter 13: Exponents and Powers

What are ‘Exponents’?

An exponent is a number that is placed as a superscript over a number. In other words, it indicates that the base is raised to a certain power.

What is an ‘Exponent zero’?

The zero exponent indicates that there are no factors of a number.

What is a ‘Standard form’?

Standard form is a way of writing a number so it is easier to read. It is often used for very large or very small numbers.

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