### Other Chapters For 8th

• 8th-class English Chapter 28

Sir John Macpherson proposed to call a meeting of experts from all countries in a week’s...
• 8th-class English Chapter 27

Duttada was neither a scientist nor an astronomer. But star-gazing was his hobby. He used to...
• 8th-class English Chapter 26

An honest boy is on his way to school carrying money to pay the school fees. The sight of crisp,...
• 8th-class English Chapter 25

Mr. Framton Nuttel has just moved to a replacement town. While visiting one of his sister’s...
• 8th-class English Chapter 24

The story is about a boy named Ranji whoshifted to a new place. It was a hot day and he was...
• 8th-class English Chapter 23

Princess September is a story of a princess of Siam, which is now known as the Thailand. The...
• 8th-class Chapter 22

Hafeez was an unhappy but carefree boy during his school days.He loved doing different things...
• 8th-class English Chapter 21

Once a selfish giant welcomed the children to his previously forbidden garden and is eventually...
• 8th-class English Chapter 19

All the animals began to work for Man, but the Camel lived in a desert because he was idle and...
• 8th-class English Chapter 20

A 11 year old child named Vellu runs from home and reaches Chennai Central in Kanyakumari...

# 8th Class Chapter No 12 - Exponents and Powers in Maths for CBSE NCERT

The power of a number indicates the number of times it must be multiplied. It is written in the form ab. Where ‘b’ indicates the number of times ‘a’ needs to be multiplied to get our result. Here ‘a’ is called the base and ‘b’ is called the exponent.A negative exponent in power for any non-integer is basically a reciprocal of the power.
A given rational number can be expressed in expanded form with the help of exponents. Both very large numbers and very small numbers can be represented in the standard form with the help of exponents.
We need to move the decimal place towards the left,if it is a very large number like 150,000,000,000, And when we do so the exponent will be positive.
We need to move the decimal places to the right in-order to represent the number in its standard form,if it is a very small number like 0.000007, When being shifted to the right, the exponent will be negative.
Posted in 8th on June 05 2020 at 03:08 PM

### CBSE NCERT 8th CLASS Maths OTHER CHAPTERS

• 8th-class Maths Chapter 16

The concepts discussed in this chapter. Interchanging the digits of a number. The...
• 8th-class Maths Chapter 15

Graphical presentation of data is easier to understand.(i) A bar graph  is used to show...
• 8th-class Maths Chapter 14

In mathematics, factorization (also factorisation in some forms of British English) or factoring...
• 8th-class Maths Chapter 13

In mathematics, two variables are proportional if there is always a constant ratio between them....
• 8th-class Maths Chapter 11

NCERT Solutions for Class 8 Maths Chapter 11 These solutions will help you to effectively...
• 8th-class Maths Chapter 10

A shape is the form of an object or its external boundary, outline, or external surface, as...
• 8th-class Maths Chapter 9

NCERT Solutions for Class 8 Maths Chapter 9  Algebraic Expressions and Identities will become...
• 8th-class Maths Chapter 8

Introduction to NCERT Solutions for Class 8 Maths Chapter 8 NCERT solutions helps you  break...
• 8th-class Maths Chapter 7

In mathematics, a cube root of a number x is a number y such that y3 = x. All real numbers...
• 8th-class Maths Chapter 6

NCERT Solutions for Class 8 Maths Chapter 6 Scoring sensible marks in exams is the dream of...