Exponents Class-7th RS Aggarwal ICSE Maths Goyal Brothers

Exponents Class-7th RS Aggarwal ICSE Mathematics Solutions Goyal Brothers Prakashan Chapter-5. We provide step by step Solutions of Exercise / lesson-5 Exponents for ICSE Class-7  RS  Aggarwal  Mathematics .

Our Solutions contain all type Questions with Exe-5 A, Exe-5 B (MCQ) and Mental Maths to develop skill and confidence. Visit official Website CISCE for detail information about ICSE Board Class-7 Mathematics.

Board	ICSE
Publications	Goyal brothers Prakshan
Subject	Maths
Class	7th
Chapter-5	Exponents
Writer	RS Aggrawal
Book Name	Foundation
Topics	Solution of Exe-5 A, Exe-5 B (MCQ) and Mental Maths
Academic Session	2021-2022

Exponents Class-7th RS Aggarwal ICSE Mathematics Solutions Goyal Brothers Prakashan Chapter-5

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–: Select Topics :–

 Exe-5 A,

MCQ Exe-5 B,

Mental Maths 

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Repeated multiplication of same number can be expressed in the form of Exponents

Exponents

We can write large numbers in a short form using exponents.
For example: 10,000 = 10 × 10 × 10 × 10 = 10⁴
Here, ‘10’ is called the base and ‘4’ the exponent. The number 10⁴ is read as 10 raised to the power of 4 or simply as the fourth power of 10.
10⁴ is called the exponential form of 10,000

Law of Exponents

Let any non-zero integer is a,

• a^m × aⁿ = a^m+n, where m and n are whole numbers
• a^m ÷ aⁿ = a^m-n where m and n are whole numbers and m > n.
• (a^m)ⁿ = a^mn (where m and n are whole numbers)
• a^m × b^m = (ab)^m (where m is any whole number)
• a⁰ = 1

(where m is a whole number; a and b are any non-zero integers)

Expressing Large Numbers in the Standard Form
Large numbers can be expressed conveniently using exponents. Such a number is said to be in standard form if it can be expressed as k × 10^m, where 1 ≤, k < 10 and m is a natural number.

For any rational number a and positive integer n, we define aⁿ as a × a × a × …… × a (n times). aⁿ is known as the nth power of a and is read as ‘a raised to the power n’. The rational a is called the base and n is called the exponent or power.
e.g. 10,000 = 10 × 10 × 10 × 10 = 10⁴.
10 is the base and 4 is the exponent.

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Exercise-  5 A, Exponents Class-7th RS Aggarwal ICSE Mathematics Solutions Goyal Brothers Prakashan

Page 78

Question 1 

Evaluate :

Question 2

express ………………exponential notation ………

Question 3

express ………………exponential notation ………

Question 4

express ………………exponential notatio

Question 5

simplify ………………….number

Question 6

simplify ………………….number

Question 7 

the distance ……………………notation

Question 8

The ………………….. bytes

Question 9

In …………….. Players.

Question 10

express ………………..   notation

 

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RS Aggarwal  Mathematics Solutions Goyal Brothers Prakashan Exercise-  5 B Exponents ICSE Class-7th 

MULTIPLE CHOICE QUESTIONS 

Page 79

choose the correct option in each of the following

Question 1 and Question 2

………………is equal to

Question 3

the value of x such that……………

Question 4

the value of ………………

Question 5

the number 34613000 …………………to

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Mental Maths, Exponents Class-7th RS Aggarwal ICSE Mathematics Solutions Goyal Brothers Prakashan\

Page 79

Question 1

fill in the blanks………….

……………

…………….

……………..

……………..

……………..

Answer

 

Question 2

write true …………………..false (F)

…………….

……………..

……………..

……………..

……………..

Answer

 

–: End of Exponents Class-7th RS Aggarwal Solutions :–

Return to- RS Aggarwal Solutions for ICSE Class-7 Goyal Brothers Prakashan

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