Class 6 Exam > Class 6 Videos > Mathematics Class 6 ICSE > Substitution
Substitution Video Lecture | Mathematics Class 6 ICSE
FAQs on Substitution Video Lecture - Mathematics Class 6 ICSE
| 1. What is substitution in mathematics? |  |
Ans.Substitution in mathematics is a method used to replace a variable with a number or another expression. This technique is often used to simplify expressions or solve equations, allowing students to evaluate mathematical statements more easily.
| 2. How do you perform substitution in an equation? | |
Ans.To perform substitution in an equation, first identify the variable you want to replace. Then, replace that variable with the value or expression you have. For example, if you have the equation x + 3 = 7 and you know x = 4, you would substitute 4 in place of x to get 4 + 3 = 7.
| 3. Why is substitution important in solving equations? | |
Ans.Substitution is important in solving equations because it simplifies the process of finding the value of unknown variables. By substituting known values, students can reduce complex problems into simpler ones, making it easier to find solutions and understand relationships between different quantities.
| 4. Can substitution be used in word problems? | |
Ans.Yes, substitution can be used in word problems. When solving a word problem, you can first define the variables that represent the unknown quantities. Then, as you gather additional information, you can substitute those values into your equations to find the solution.
| 5. What are some examples of problems that can be solved using substitution? | |
Ans.Some examples of problems that can be solved using substitution include finding the value of a variable in simple algebraic equations, solving systems of equations, and evaluating expressions. For instance, if you have two equations, you can substitute the value from one equation into the other to solve for unknown variables.
About this Video
Oct 02, 2025
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Video Description: Substitution for Class 6 2025 is part of Mathematics Class 6 ICSE preparation.
The notes and questions for Substitution have been prepared according to the Class 6 exam syllabus.
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Video Lecture & Questions for Substitution Video Lecture | Mathematics Class 6 ICSE - Class 6 full syllabus preparation | Free video for Class 6 exam to prepare for Mathematics Class 6 ICSE.
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