RS Aggarwal Class-7 Algebraic Expressions ICSE Maths Goyal Brothers Prakashan Chapter-13 Solutions. We provide step by step Solutions of Exercise / lesson-13 Algebraic Expressions for ICSE Class-7 RS Aggarwal Mathematics.
Our Solutions contain all type Questions with Exe-13 A, Exe-13 B, Exe-13 C(MCQ) with 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-13 | Algebraic Expressions |
Writer | RS Aggrawal |
Book Name | Foundation |
Topics | Solution of Exe-13 A, Exe-13 B, Exe-13 C(MCQ) with Mental Maths |
Academic Session | 2021-2022 |
RS Aggarwal Class-7 Algebraic Expressions ICSE Maths Goyal Brothers Prakashan Chapter-13 Solutions
-: Select Topic :-
Introduction to Algebraic Expressions
Constant
Constant is a quantity which has a fixed value.
Terms of Expression
Parts of an expression which are formed separately first and then added are known as terms. They are added to form expressions.
Coefficient of a term
The numerical factor of a term is called coefficient of the term.
Writing Number patterns and rules related to them
If a natural number is denoted by n, its successor is (n + 1).
If a natural number is denoted by n, 2n is an even number and (2n+1) an odd number.
Definition of Variables
Any algebraic expression can have any number of variables and constants.
Variable
A variable is a quantity that is prone to change with the context of the situation.
Factors of a term
Factors of a term are quantities which can not be further factorised. A term is a product of its factors
Formation of Algebraic Expressions
- Variables and numbers are used to construct terms.
- These terms along with a combination of operators constitute an algebraic expression.
- The algebraic expression has a value that depends on the values of the variables.
Like and Unlike Terms
Like terms
Terms having same algebraic factors are like terms.
Unlike terms
Terms having different algebraic factors are unlike terms.
Monomial, Binomial, Trinomial and Polynomial Terms
Types of expressions based on the number of terms
Based on the number of terms present, algebraic expressions are classified as:
Monomial: An expression with only one term.
Binomial: An expression which contains two, unlike terms.
Trinomial: An expression which contains three terms.
Polynomials : An expression with one or more terms.
Addition and Subtraction of Algebraic Equations
- Mathematical operations like addition and subtraction can be applied to algebraic terms.
- For adding or subtracting two or more algebraic expression, like terms of both the expressions are grouped together and unlike terms are retained as it is.
- Sum of two or more like terms is a like term with a numerical coefficient equal to the sum of the numerical coefficients of all like terms.
- Difference between two like terms is a like term with a numerical coefficient equal to the difference between the numerical coefficients of the two like terms.
Exe-13 A, RS Aggarwal Class-7 Algebraic Expressions ICSE Maths Goyal Brothers Prakashan
Page 145-146
Question 1 :
Identify monomials, binomials and trinomials from the following algebraic expressions.
(i)………
(ii)……….
(iii)………
(iv)………
(v)………
(vi)……..
Question 2 :
Write down the numerical as well as ………………………… monomials.
(i)…………
(ii)………
(iii)………..
(iv)……….
(v)……….
(vi)………….
Question 3 :
……………………..
………………………
……………………..
Question 6 :
Identify which of the following …………………… write their degrees :
(i)……..
(ii)…….
(iii)……..
(iv)………..
(v)………..
(vi)………..
(vii)………
Exe-13 B, RS Aggarwal Class-7 Algebraic Expressions ICSE Maths Goyal Brothers Prakashan
Page 149-150
Question 1 :
Add the following expressions :
(i)……….
(ii)……..
(iii)………
(iv)………
(v)………..
(vi)………..
(vii)…….
(viii)……….
(ix)……….
Question 2 :
Simplify :
(i)……….
(ii)……..
(iii)………
(iv)………
(v)………..
Question 3 :
The two adjacent sides of a rectangle …………………….. find it’s perimeter
Question 4 :
…………………
………………..
……………….
Question 12 :
How much is …………………….
Question 13 :
……………………
…………………….
………………….
Question 15 :
The perimeter of a rectangle is …………………….. find the other side.
MCQs Exe-13 C,
Multiple Choice Questions
Page 150
Choose the correct option in each of the following
Question 1:
Which of the following is a literal ?
Question 2 :
The coefficient of ………………….
Question 3:
Which of the following is a pair of like terms ?
Question 4:
……………………….
……………………….
………………………
Question 9 :
The value of the expression ……………………….
Question 10:
The sum of the polynomials ………………….
Mental Maths Chapter-13
Page 151
Question 1:
Fill in blanks
(i)……….
(ii)……..
(iii)………
(iv)………
(v)………..
(vi)………..
(vii)…….
(viii)……….
(ix)……….
(x) …….
Answer 1 :
(i) Variable
(ii) 5
(iii) terms
(iv) 0
(v) literal coefficients
(vi) x/b
(vii) having 4
(viii) = 2x² -(1/2)y + 4xy
(ix) non-negative integers.
(x) (mn – 2n²)
Question 2:
Write true (T) or false (F) :
Answer 2:
(i) True
(ii) True
(iii) True
(iv) False
(v) True
(vi) True
–: End of RS Aggarwal Class-7 Algebraic Expressions Solutions :–
Return to- RS Aggarwal Solutions for ICSE Class-7 Goyal Brothers Prakashan
Thanks
It is not the latest solutions of maths it is older one
we will see if such error