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The NCERT Class 7 Maths, Chapter 12 deals with Algebraic Expressions. This chapter is a continuation of the already studied algebra chapters in the previous classes. In this chapter, you will learn more about algebraic expressions. You will understand the formation of an expression, terms of an expression and operations on the expressions. In this chapter, you will learn to solve problems on algebraic expressions to find any unknown value using the expressions. You will also learn about the different types of expressions depending on the number of terms.
To know more about NCERT Solutions for Class 7, Maths Chapter 12, Algebraic Expressions, let’s look at the topics and sub-topics of this chapter:
12. 1 Introduction
12.2 How are Expressions formed?
12.3 Terms of an Expression
12. 4 Like and Unlike Terms
12.5 Monomials. Binomials, Trinomials and Polynomials.
12.6 Addition and Subtraction of Algebraic Expressions
12.7 Finding the Value of an Expression
12.8 Using Algebraic Expressions – Formulas and Rules
Section 12.2 – This section deals with the formation of expressions. The algebraic expressions are formed with the combination of variables and constants. In this section, you will learn to form an algebraic expression by using variables and constants, and you will also learn how expressions are formed.
Section 12.3 – This section deals with the terms of expression. In this section, you will learn that the terms are added to form expressions. You will also learn to understand the different terms of an expression. This section deals with the terms that form an expression and how to frame these expressions using the terms. You will also learn about the coefficients of the terms of an expression.
Section 12.4 – This section deals with like and unlike terms in an expression. As already studied in the previous section about different terms in an expression, in this section, you will learn about the like and unlike terms in an expression. You will also learn to differentiate between like terms that can be grouped together to operate. The like terms are the ones having the same algebraic factors. The like terms can be solved and the unlike terms cannot be solved grouping with the like terms.
NCERT Class 7 Maths, Chapter 12 helps you to understand the concept of Algebraic Expressions. You will learn to solve various problems on algebraic expressions, and will also learn about the properties and the terms of an expression. In this chapter, you will learn the steps to perform various operations on algebraic expressions. In this chapter, there are many topics related to algebraic expressions, which will help to solve complex problems in Algebra. You will also learn to find the value of an unknown variable in an expression. This can be used in practical problems to find any unknown figure using algebraic expressions.
Section 12.5 – This section deals with the different types of expressions. In this section, you will learn about monomial, binomial, trinomial and polynomial expression. These types are based on the number of terms in an expression. In this section, you will understand the different forms of an expression depending upon the number of terms in an expression.
Section 12.6 – This section deals with the operations like addition and subtraction of expressions. In this section, you will learn to add and subtract the like terms by grouping the like terms together. You will learn to solve the algebraic expression by reducing it to unlike terms after solving all the like terms in an expression.
Section 12.7 – In this section, you will learn to find the value of an algebraic expression when the value of a variable is given. You will learn to solve various problems in solving the expressions to find value by substituting the value of a given variable.
Section 12.8 – This section deals with using algebraic expressions in formula and rules. In this section, you will learn how expressions are used to write the formulas in a concise and general form. You will learn to use expressions to define any rules and formulas with the help of algebraic expressions. In this section, you will learn how the unknown value is represented using a variable in an expression and the rules or formulas are written in a general format to solve and find the answers.
To know more about the NCERT solutions Class 7 Maths, Chapter 12 – Algebraic Expressions explore the exercises below:
https://www.urbanpro.com/assets/new-ui/sharing_job.pngPublished on 2020-02-13 17:11:29 by arunima. Last Modified on 2020-02-13 17:11:29
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