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NCERT Solutions for Class 7 Maths Chapter 10 Algebraic Expressions

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NCERT Solutions for Maths Chapter 10 Algebraic Expressions Class 7 - FREE PDF Download

NCERT Solutions of Chapter 10 Maths explores the world of Algebraic Expressions Class 7. This chapter introduces variables, constants, and coefficients, which are the building blocks of algebra. Understanding these basics is crucial as they form the foundation for more advanced topics in algebra. It is important to focus on identifying and combining like terms, and performing operations such as addition, subtraction, and simplification of expressions. Mastering these concepts prepares students to tackle more complex algebraic problems in higher classes. This chapter sets the stage for a deeper understanding of algebra and its applications.

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Glance on Maths Chapter 10 Class 7 - Algebraic Expressions

  • This chapter introduces students to the basic concepts of algebraic expressions, explaining terms, coefficients, variables, and constants.

  • The chapter categorizes algebraic expressions into monomials, binomials, and polynomials, helping students understand the structure and classification of different expressions.

  • It covers the fundamental operations such as addition, subtraction, and multiplication of algebraic expressions, providing step-by-step solutions and examples.

  • The chapter demonstrates the practical application of algebraic expressions in solving real-life problems and mathematical equations, enhancing problem-solving skills.

  • Learn techniques for simplifying and factorizing algebraic expressions, which are crucial for solving more complex mathematical problems here.

  • This article contains chapter notes, important questions, exemplar solutions, exercises and video links for Chapter 10 - Algebraic Expressions, which you can download as PDFs.

  • There are two exercises (17 fully solved questions) in class 7th maths chapter 10 Algebraic Expressions.


Access Exercise Wise NCERT Solutions for Chapter 10 Maths Class 7

Exercises Under NCERT Solutions for Class 7 Maths Chapter 10 Algebraic Expressions

Exercise 10.1

Class 7 Maths Ch 12 focuses on introducing algebraic expressions by explaining their core components, such as variables, constants, and coefficients. It helps students identify different terms in expressions and distinguish between monomials, binomials, and polynomials. The exercise includes practice questions that require students to recognize and classify various algebraic expressions.


Exercise 10.2

Class 7 Math Chapter 10 deals with operations on algebraic expressions, including the addition and subtraction of like terms. It involves simplifying expressions by combining like terms and using the distributive property. The problems in this exercise guide students through the steps needed to simplify complex expressions, ensuring a solid understanding of the operations involved.


Access NCERT Solutions for Class 7 Maths Chapter 10 – Algebraic Expressions

Exercise  10.1

1. Get the algebraic expressions in the following cases using variables, constants and arithmetic operations:

(i) Subtraction of $z$ from $y$.

Ans: $y-z$


(ii) One-half of the sum of numbers $x$ and $y$.

Ans: $\frac{x+y}{2}$


(iii) The number $z$ multiplied by  itself.

Ans: ${{z}^{2}}$


(iv) One-fourth of the product of numbers $p$ and $q$.

Ans: $\frac{pq}{4}$


(v) Numbers $x$ and $y$ both squared and added.

Ans: ${{x}^{2}}+{{y}^{2}}$


(vi) Number $5$ added to three times the product of $m$ and $n$.

Ans: $3mn+5$


(vii) Product of numbers $y$ and $z$ subtracted from $10$.

Ans: $10-yz$


(viii) Sum of numbers $a$ and $b$ subtracted from their product.

Ans: $ab-\left( a+b \right)$


 2.

(i) Identify the terms and their factors in the following expressions, show the term and factors by tree diagram:

(a) $x-3$ 

Ans: Terms: $x,-3$


Terms x-3.


(b) $1+x+{{x}^{2}}$

Ans: Terms: $1,x,{{x}^{2}}$


Terms 1 + x + x2


(c) $y-{{y}^{3}}$

Ans: Terms: $y,-{{y}^{3}}$


Terms y-y3


(d) $5x{{y}^{2}}+7{{x}^{2}}y$

Ans: Terms: $5x{{y}^{2}},7{{x}^{2}}y$


Terms 5xy + 7x2y


(e) $-ab+2{{b}^{2}}-3{{a}^{2}}$

Ans: Terms: $-ab,2{{b}^{2}},-3{{a}^{2}}$


term -ab+2b2-3a2


(ii) Identify the terms and factors in the given expressions given below:

(a) $-4x+5$

Ans: Terms: $-4x,5$ and factors: $-4,x;5$


(b) $-4x+5y$

Ans: Terms: $-4x,5y$ and factors: $-4,x;5,y$


(c) $5y+3{{y}^{2}}$

Ans: Terms: $5y,3{{y}^{2}}$ and factors: $5,y;3,y,y$


(d) $xy+2{{x}^{2}}{{y}^{2}}$

Ans: Terms: $xy,2{{x}^{2}}{{y}^{2}}$ and factors: $x,y;2,x,x,y,y$


(e) $pq+q$

Ans: Terms: $pq,q$ and factors: $p,q;q$


(f) $1.2ab-2.4b+3.6a$

Ans: Terms: $1,2ab,-2.4b,3.6a$ and factors: $1.2,a,b;-2.4,b;3.6,a$


(g) $\frac{3}{4}x+\frac{1}{4}$

Ans: Terms: $\frac{3}{4}x,\frac{1}{4}$ and factors: $\frac{3}{4},x;\frac{1}{4}$


(h) $0.1{{p}^{2}}+0.2{{q}^{2}}$

Ans: Terms: $0.1{{p}^{2}},0.2{{q}^{2}}$ and factors: $0.1,p,p;0.2,q,q$


3. Identify the numerical coefficients of terms (other than constants) in the following expressions:

(1) $5-3{{t}^{2}}$

Ans: Terms: $-3{{t}^{2}}$ , Numerical coefficients: $-3$


(2) $1+t+{{t}^{2}}+{{t}^{3}}$

Ans: Terms: $t,{{t}^{2}},{{t}^{3}}$ , Numerical coefficients: $1,1,1$


(3) $x+2xy+3y$

Ans: Terms: $x,2xy,3y$ , Numerical coefficients: $1,2,3$


(4) $100m+1000n$

Ans: Terms: $100m,1000n$ , Numerical coefficients: $100,1000$


(5) $-{{p}^{2}}{{q}^{2}}+7pq$

Ans: Terms: $-{{p}^{2}}{{q}^{2}},7pq$ , Numerical coefficients: $-1,7$


(6) $1.2a+0.8b$

Ans: Terms: $1.2a,0.8b$ , Numerical coefficients: $1.2,0.8$


(7) $3.14{{r}^{2}}$

Ans: Terms: $3.14{{r}^{2}}$ , Numerical coefficients: $3.14$


(8) $2\left( l+b \right)$

Ans: Terms: $2l,2b$ , Numerical coefficients: $2,2$


(9) $0.1y+0.01{{y}^{2}}$

Ans: Terms: $0.1y,0.01{{y}^{2}}$ , Numerical coefficients: $0.1,0.01$

4.

(a) Identify terms which contain $x$ and give the coefficient of $x$.

(1)  ${{y}^{2}}x+y$

Ans: Terms: ${{y}^{2}}x$ , coefficients: ${{y}^{2}}$


(2) $13{{y}^{2}}-8yx$

Ans: Terms: $-8yx$ , coefficients: $-8y$


(3) $x+y+2$

Ans: Terms: $x$ , coefficients: $1$


(4) $5+z+zx$

Ans: Terms: $zx$ , coefficients: $z$


(5) $1+x+xy$

Ans: Terms: $x,xy$ , coefficients: $1,y$


(6) $12x{{y}^{2}}+25$

Ans: Terms: $12x{{y}^{2}}$ , coefficients: $12{{y}^{2}}$


(7) $7x+x{{y}^{2}}$

Ans: Terms: $7x,x{{y}^{2}}$ , coefficients: $7,{{y}^{2}}$


(b) Identify terms which contain ${{y}^{2}}$ and give the  coefficient of ${{y}^{2}}$.

(1) $8-x{{y}^{2}}$

Ans: Terms: $-x{{y}^{2}}$ , coefficients: $-x$


(2) $5{{y}^{2}}+7x$

Ans: Terms: $5{{y}^{2}}$ , coefficients: $5$


(3) $2{{x}^{2}}y-15x{{y}^{2}}+7{{y}^{2}}$

Ans: Terms: $-15x{{y}^{2}},7{{y}^{2}}$ , coefficients: $-15x,7$


5. Classify into the monomial, binomial and trinomials:

1. $4y-7x$

Ans: Binomial 


2. ${{y}^{2}}$

Ans: Monomial


3. $x+y-yx$

Ans: Trinomial 


4. $100$

Ans: Monomial


5. $ab-a-b$

Ans: Trinomial


6. $5-3t$

Ans: Binomial


7. $4{{p}^{2}}q-4p{{q}^{2}}$

Ans: Binomial


8. $7mn$

Ans: Monomial


9. ${{z}^{2}}-3z+8$

Ans: Trinomial


10. ${{a}^{2}}+{{b}^{2}}$

Ans: Binomial


11. ${{z}^{2}}+z$

Ans: Binomial


12. $1+x+{{x}^{2}}$

Ans: Trinomial


6. State whether a given pair of terms is of like or unlike terms:

1. $1,100$

Ans: Like terms


2. $-7x,\frac{5}{2}x$

Ans: Like terms


3. $-29x,-29y$

Ans: Unlike terms


4. $14xy,42yx$

Ans: Like terms


5. $4{{m}^{2}}p,4m{{p}^{2}}$

Ans: Unlike terms


6. $12xz,12{{x}^{2}}{{z}^{2}}$

Ans: Unlike terms


7. Identify like terms in the following:

(1) $-x{{y}^{2}},-4y{{x}^{2}},8{{x}^{2}},2x{{y}^{2}},7y,-11{{x}^{2}},-100x,-11yx,20{{x}^{2}}y,-6{{x}^{2}},y,2xy,3x$


Ans: Like terms are:

$\left( -x{{y}^{2}},2x{{y}^{2}} \right),\left( -4y{{x}^{2}},20{{x}^{2}}y \right),\left( 8{{x}^{2}},-11{{x}^{2}},-6{{x}^{2}} \right),\left( 7y,y \right),\left( -110x,3x \right),\left( -11yx,2xy \right)$


(2)  $10pq,7p,8q,-{{p}^{2}}{{q}^{2}},-7qp,-100q,-23,12{{q}^{2}}{{p}^{2}},-5{{p}^{2}},41,2405p,78qp,13{{p}^{2}}q,q{{p}^{2}},701{{p}^{2}}$

Ans: Like terms are:

\[\left( 10pq,-7pq,78pq \right),\left( 7p,2405p \right),\left( 8q,-100q \right),\left( -{{p}^{2}}{{q}^{2}},12{{p}^{2}}{{q}^{2}} \right),\left( -12,41 \right),\left( -5{{p}^{2}},701{{p}^{2}} \right),\left( 13{{p}^{2}}q,q{{p}^{2}} \right)\]


Exercise 12.3

1. If $m=2$, find the value of :

(a) $m-2$

Ans: $\Rightarrow m-2$

$\Rightarrow 2-2$

$\Rightarrow 0$


(b) $3m-5$

Ans: $\Rightarrow 3m-5$

$\Rightarrow 6-5$

$\Rightarrow 1$


(c) $9-5m$

Ans: $\Rightarrow 9-5m$

$\Rightarrow 9-10$

$\Rightarrow -1$


(d) $3{{m}^{2}}-2m-7$

Ans: $\Rightarrow 3{{m}^{2}}-2m-7$

$\Rightarrow 12-4-7$

$\Rightarrow 1$


(e) $\frac{5}{2}m-4$

Ans: $\Rightarrow \frac{5}{2}m-4$

$\Rightarrow 5-4$

$\Rightarrow 1$


2. If $p=-2$, find the value of:

(a) $4p+7$

Ans: $\Rightarrow 4p+7$

$\Rightarrow -8+7$

$\Rightarrow -1$


(b) $-3{{p}^{2}}+4p+7$

Ans: $\Rightarrow -3{{p}^{2}}+4p+7$

$\Rightarrow -3\times 4+4\left( -2 \right)+7$

$\Rightarrow -12-8+7$

$\Rightarrow -13$


(c) $-2{{p}^{3}}-3{{p}^{2}}+4p+7$

Ans: $\Rightarrow -2{{p}^{3}}-3{{p}^{2}}+4p+7$

$\Rightarrow -2\left( -8 \right)-3\times 4-8+7$

$\Rightarrow 16-12-8+7$

$\Rightarrow 3$


 3. Find the value of the following expressions, when $x=-1$:

(a) $2x-7$

Ans:  $\Rightarrow 2x-7$

$\Rightarrow 2\left( -1 \right)-7$

$\Rightarrow -9$


(b) $-x+2$

Ans: $\Rightarrow -x+2$

$\Rightarrow -\left( -1 \right)+2$

$\Rightarrow 3$


(c) ${{x}^{2}}+2x+1$

Ans: $\Rightarrow {{x}^{2}}+2x+1$

$\Rightarrow {{\left( -1 \right)}^{2}}+2\left( -1 \right)+1$

$\Rightarrow 0$


(d) $2{{x}^{2}}-x-2$

Ans: $\Rightarrow 2{{x}^{2}}-x-2$

$\Rightarrow 2{{\left( -1 \right)}^{2}}-\left( -1 \right)-2$

$\Rightarrow 1$


4. If $a=2,b=-2$, find the value of:

(a) ${{a}^{2}}+{{b}^{2}}$

Ans: $\Rightarrow {{\left( -2 \right)}^{2}}+{{\left( -2 \right)}^{2}}$

$\Rightarrow 4+4$

$\Rightarrow 8$


(b) ${{a}^{2}}+ab+{{b}^{2}}$

Ans: \[\Rightarrow {{\left( -2 \right)}^{2}}+\left( -2 \right)\left( -2 \right)+{{\left( -2 \right)}^{2}}\]

$\Rightarrow 4-4+4$

$\Rightarrow 4$


(c) ${{a}^{2}}-{{b}^{2}}$

Ans: $\Rightarrow {{\left( -2 \right)}^{2}}-{{\left( -2 \right)}^{2}}$

$\Rightarrow 4-4$

$\Rightarrow 0$


5. If $a=0,b=-1$, find the value of given expression:

(a) $2a+2b$

Ans: $\Rightarrow 2\left( 0 \right)+2\left( -1 \right)$

$\Rightarrow 0-2$

$\Rightarrow -2$


(b) \[2{{a}^{2}}+{{b}^{2}}+1\]

Ans: $\Rightarrow 2{{\left( 0 \right)}^{2}}+{{\left( -1 \right)}^{2}}+1$

$\Rightarrow 0+1+1$

$\Rightarrow 2$


(c) \[2{{a}^{2}}b+2a{{b}^{2}}+ab\]

Ans: $\Rightarrow 2{{\left( 0 \right)}^{2}}\left( -1 \right)+2\left( 0 \right){{\left( -1 \right)}^{2}}+\left( 0 \right)\left( -1 \right)$

$\Rightarrow 0$


(d) \[{{a}^{2}}+ab+2\]

Ans: $\Rightarrow {{\left( 0 \right)}^{2}}+\left( 0 \right)\left( -1 \right)+2$

$\Rightarrow 0+0+2$

$\Rightarrow 2$


6. Simplify the expressions and find the value if $x$ is equal to $2$:

(a) $x+7+4\left( x-5 \right)$

Ans:

$\Rightarrow x+7+4x-20$

$\Rightarrow 5x-13$

$\Rightarrow 5\times 2-13$

$\Rightarrow 10-13$

$\Rightarrow -3$


(b) $3\left( x+2 \right)+5x-7$

Ans:

$\Rightarrow 3x+6+5x-7$

$\Rightarrow 8x-1$

$\Rightarrow 8\times 2-1$

$\Rightarrow 16-1$

$\Rightarrow 15$


(c) $6x+5\left( x-2 \right)$

Ans:

$\Rightarrow 6x+5x-10$

$\Rightarrow 11x-10$

$\Rightarrow 11\times 2-10$

$\Rightarrow 22-10$

$\Rightarrow 12$


(d) $4\left( 2x-1 \right)+3x+11$

Ans:

$\Rightarrow 8x-4+3x+11$

$\Rightarrow 11x+7$

$\Rightarrow 11\times 2+7$

$\Rightarrow 22+7$

$\Rightarrow 29$


7. Simplify these expressions and find their values if $x=3,a=-1,b=-2$:

(a) $3x-5-x+9$

Ans:

$\Rightarrow 2x+4$

$\Rightarrow 2\times 3+4$

$\Rightarrow 6+4$

$\Rightarrow 10$


(b) $2-8x+4x+4$

Ans:

$\Rightarrow 6-4x$

$\Rightarrow 6-4\times 3$

$\Rightarrow 6-12$

$\Rightarrow -6$


(c) $3a+5-8a+1$

Ans:

$\Rightarrow 6-5a$

$\Rightarrow 6-5\left( -1 \right)$

$\Rightarrow 6+5$

$\Rightarrow 11$


(d) $10-3b-4-5b$

Ans:

$\Rightarrow 6-8b$

$\Rightarrow 6-8\left( -2 \right)$

$\Rightarrow 6+16$

$\Rightarrow 22$


(e) $2a-2b-4-5+a$

Ans:

$\Rightarrow 3a-2b-9$

$\Rightarrow 3\left( -1 \right)-2\left( -2 \right)-9$

$\Rightarrow -3+4-9$

$\Rightarrow -8$


 8.

(a) If $z=10$, find the value of ${{z}^{3}}-3\left( Z-10 \right)$

Ans:

$\Rightarrow {{\left( 10 \right)}^{3}}-3\left( 10-10 \right)$

$\Rightarrow 1000-0$

$\Rightarrow 1000$


(b) If $p=-10$ , find the value of ${{p}^{2}}-2p-100$

Ans:

$\Rightarrow {{\left( -10 \right)}^{2}}-2\left( -10 \right)-100$

$\Rightarrow 100+20-100$

$\Rightarrow 20$


9. What should be the value of $a$ if the value of $2{{x}^{2}}+x-a$ equal to $5$, when $x=0$ ?

Ans:

Putting $x=0$ in $2{{x}^{2}}+x-a=5$, we get

$2{{\left( 0 \right)}^{2}}+0-a=5$

$0+0-a=5$

$a=-5$

Hence, the value of $a$ is $-5$ .


10. Simplify the expression and find its value when $a=5$ and $b=-3$: $2\left( {{a}^{2}}+ab \right)+3-ab$

Ans:

Simplifying the equation,

$\Rightarrow 2\left( {{a}^{2}}+ab \right)+3-ab$

$\Rightarrow 2{{a}^{2}}+2ab+3-ab$

$\Rightarrow 2{{a}^{2}}+ab+3$

Putting $a=5$ and $b=-3$ in the above equation

$\Rightarrow 2{{\left( 5 \right)}^{2}}+5\left( -3 \right)+3$

$\Rightarrow 2\times 25-15+3$

$\Rightarrow 50-15+3$

$\Rightarrow 38$

Value of the expression after simplifying and putting $a=5$ and $b=-3$ is $38$ .


Overview of Deleted Syllabus for CBSE Class 7 Maths Algebraic Expressions

Chapter

Dropped Topics

Algebraic Expressions

Exercise - 10.2 (6 Questions and Solutions)

Exercise - 10.4 (2 Questions and Solutions)

12.6 Addition and subtraction of algebraic expressions

12.8 Using algebraic expressions–formulas and rules



Class 7 Maths Chapter 10: Exercises Breakdown

Exercise

Number of Questions

Exercise 10.1

7 Questions and Solutions

Exercise 10.2

10 Questions and Solutions



Conclusion

Chapter 10 of Class 7 Maths, Algebraic Expressions, is essential for developing a solid understanding of algebra. Key areas to focus on include identifying variables, constants, and coefficients, and mastering the operations of addition, subtraction, and simplification of expressions. Practice these concepts thoroughly to ensure a strong grasp. In the previous year's exams, there were about 4-5 questions from this chapter, emphasizing its importance. Consistent practice and a clear understanding of these fundamentals in class 7 maths chapter 10 pdf solutions will help students excel in this chapter and perform well in their exams.


Other Study Material for CBSE Class 7 Maths Chapter 10


Chapter-Specific NCERT Solutions for Class 7 Maths

Given below are the chapter-wise NCERT Solutions for Class 7 Maths. Go through these chapter-wise solutions to be thoroughly familiar with the concepts.


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FAQs on NCERT Solutions for Class 7 Maths Chapter 10 Algebraic Expressions

1. What are the key topics a student must master in NCERT Class 7 Maths Chapter 10, Algebraic Expressions?

According to the CBSE 2025-26 syllabus, a student must master the following key topics in Chapter 10, Algebraic Expressions:

  • Identifying variables and constants to form expressions.
  • Understanding the components of an expression, such as terms, factors, and coefficients.
  • Classifying expressions as monomials, binomials, or trinomials.
  • Differentiating between like and unlike terms.
  • Performing operations like addition and subtraction of algebraic expressions.
  • Finding the value of an expression by substituting the given values for variables.

2. How do you correctly identify terms and their factors in an expression like 5xy² + 7x²y?

To correctly identify terms and factors, you first separate the parts of the expression connected by addition or subtraction. These are the terms. Then, you break down each term into its constituent parts that are multiplied together.

  • Step 1: Identify the terms. In the expression 5xy² + 7x²y, the terms are 5xy² and 7x²y.
  • Step 2: Identify the factors for each term.
  • For the term 5xy², the factors are 5, x, y, and y.
  • For the term 7x²y, the factors are 7, x, x, and y.

3. Why is it essential to distinguish between 'like' and 'unlike' terms before adding or subtracting expressions?

It is essential to distinguish between like and unlike terms because addition and subtraction can only be performed on like terms. Like terms have the same variables raised to the same power, acting as a common unit. For instance, in '3x + 2x', both terms represent multiples of 'x', so they can be combined to '5x'. However, in '3x + 2y', the variables are different, so they cannot be combined further. Treating unlike terms as like terms is a fundamental error that leads to incorrect simplification.

4. What is the correct method to find the numerical coefficient of a term in an expression?

The numerical coefficient is the constant number multiplied by the variable part of a term. To find it, simply identify the numerical factor in that term. For example, in the expression 100m + 1000n:

  • For the term 100m, the numerical coefficient is 100.
  • For the term 1000n, the numerical coefficient is 1000.
  • In a term like -p²q², the numerical coefficient is -1, as the term implies -1 × p²q².

5. How do you classify an algebraic expression as a monomial, binomial, or trinomial?

You classify an algebraic expression based on the number of unlike terms it contains:

  • An expression with only one term is called a monomial (e.g., 7mn, y²).
  • An expression with two unlike terms is called a binomial (e.g., 4y - 7z, a² + b²).
  • An expression with three unlike terms is called a trinomial (e.g., x + y - xy, z² - 3z + 8).

A constant like '100' is also considered a monomial because it consists of a single term.

6. What is a common mistake students make when subtracting one algebraic expression from another?

A very common mistake when subtracting algebraic expressions is failing to change the sign of every term in the expression being subtracted. For example, to subtract (4a - 7ab + 3b + 12) from (12a - 9ab + 5b - 3), you must reverse the sign of each term inside the second parenthesis before combining like terms.

  • Correct Method: (12a - 9ab + 5b - 3) - (4a - 7ab + 3b + 12)
  • Sign Change: 12a - 9ab + 5b - 3 - 4a + 7ab - 3b - 12
  • Final Answer: 8a - 2ab + 2b - 15

Forgetting to change '+12' to '-12' or '-7ab' to '+7ab' is a frequent error.

7. How do you solve questions from Exercise 10.2 that require finding the value of an expression?

To find the value of an expression for a given variable, you must follow a two-step process:

  • Step 1: Simplify the expression. Combine all like terms to make the expression as simple as possible. For example, simplify 3(x + 2) + 5x - 7 to 8x - 1.
  • Step 2: Substitute the given value. Replace the variable in the simplified expression with its given numerical value and perform the arithmetic operations. If x = 2, then 8x - 1 becomes 8(2) - 1, which equals 16 - 1 = 15.

Always simplify first to reduce the chance of calculation errors.

8. How do the concepts from Chapter 10, Algebraic Expressions, apply in higher-level mathematics?

The concepts in Chapter 10 are foundational for almost all of higher-level mathematics. Mastering how to form, simplify, and evaluate expressions is crucial for:

  • Solving Equations: In higher classes, you will solve linear, quadratic, and polynomial equations, all of which are built from algebraic expressions.
  • Functions: The study of functions in calculus and advanced algebra relies on understanding how to manipulate expressions.
  • Physics and Engineering: Formulas used in science, like F=ma or E=mc², are algebraic expressions that describe relationships between physical quantities.

A strong grasp of this chapter ensures a smoother transition to more complex topics.

9. How do NCERT Solutions for Chapter 10 help in mastering Algebraic Expressions?

The NCERT Solutions for Class 7 Maths Chapter 10 are a vital tool for mastering the topic. They provide step-by-step methods for solving every problem in the textbook exercises. By studying these solutions, students can understand the correct procedure for identifying terms, combining like terms, and evaluating expressions, ensuring they follow the CBSE-prescribed methodology. This helps in identifying weak areas and correcting mistakes before exams.