Math | Class 8

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    Chapter 1 Integers ( 31 videos)  (Practice Test)

      1.1: Integers
      Problem-Positive, Negative and Natural Integers or Directed Numbers
    1. Problem-Positive, Negative and Natural Integers or Directed Numbers
      1584 views
      1.2: Ordering of Integers (Practice Test)
      Ordering of Integers or Directed Numbers
    1. Ordering of Integers or Directed Numbers
      614 views
      2. Problem-Ordering of Integers or Directed Numbers
    2. Problem-Ordering of Integers or Directed Numbers
      380 views
      3. Representing Integers on the Number Line
    3. Representing Integers on the Number Line
      2149 views
      4. Problem-Representing Integers on the Number Line
    4. Problem-Representing Integers on the Number Line
      730 views
      5. Problem-Comparison of a Negative Integer with a Positive Integer
    5. Problem-Comparison of a Negative Integer with a Positive Integer
      594 views
      6. Find the opposite of an integer
    6. Find the opposite of an integer
      290 views
      1.3: Absolute or Numerical Value of an Integer
      Absolute or Numerical Value of an Integers or Directed Numbers
    1. Absolute or Numerical Value of an Integers or Directed Numbers
      989 views
      2. Prob-Absolute or Numerical Value of an Integers or Directed Numbers
    2. Prob-Absolute or Numerical Value of an Integers or Directed Numbers
      893 views
      1.4: Addition of Integers (Practice Test)
      Sum of Two or More Given Integers or Directed Numbers
    1. Sum of Two or More Given Integers or Directed Numbers
      400 views
      2. Problem-Sum of Two or More Given Integers or Directed Numbers
    2. Problem-Sum of Two or More Given Integers or Directed Numbers
      989 views
      3. Sum of Two Integers or Directed Numbers With Unlike Signs
    3. Sum of Two Integers or Directed Numbers With Unlike Signs
      320 views
      4. Problem-Sum of Two Integers or Directed Numbers With Unlike Signs
    4. Problem-Sum of Two Integers or Directed Numbers With Unlike Signs
      654 views
      5. Sum of Two Integers or Directed Numbers With like Signs
    5. Sum of Two Integers or Directed Numbers With like Signs
      236 views
      6. Rule of Sum of Two Integers With like Signs
    6. Rule of Sum of Two Integers With like Signs
      682 views
      7. Prob-Rule of Sum of Two Integers With like Signs
    7. Prob-Rule of Sum of Two Integers With like Signs
      465 views
      8. Rule of Sum of Two Integers With Unlike Signs
    8. Rule of Sum of Two Integers With Unlike Signs
      629 views
      9. Prob-Rule of Sum of Two Integers With Unlike Signs
    9. Prob-Rule of Sum of Two Integers With Unlike Signs
      459 views
      1.5: Subtraction of Integers
      Difference of Two Given Positive Integers or Directed Numbers
    1. Difference of Two Given Positive Integers or Directed Numbers
      325 views
      2. Prob-Difference of Two Given Positive Integers or Directed Numbers
    2. Prob-Difference of Two Given Positive Integers or Directed Numbers
      362 views
      1.6: Multiplication of Integers (Practice Test)
      Multiplication of Integers or Directed Numbers With Like Signs
    1. Multiplication of Integers or Directed Numbers With Like Signs
      248 views
      2. Prob-Multiplication of Integers or Directed Numbers With Like Signs
    2. Prob-Multiplication of Integers or Directed Numbers With Like Signs
      696 views
      3. Multiplication of Integers or Directed Numbers With Unlike Signs
    3. Multiplication of Integers or Directed Numbers With Unlike Signs
      188 views
      4. Prob-Multiplication of Integers or Directed Numbers With Unlike Signs
    4. Prob-Multiplication of Integers or Directed Numbers With Unlike Signs
      563 views
      1.7: Division of Integers (Practice Test)
      Division of Integers or Directed Numbers with Like Signs
    1. Division of Integers or Directed Numbers with Like Signs
      212 views
      2. Problem-Division of Integers or Directed Numbers with Like Signs
    2. Problem-Division of Integers or Directed Numbers with Like Signs
      670 views
      3. Division of Integers or Directed Numbers with Unlike Signs
    3. Division of Integers or Directed Numbers with Unlike Signs
      162 views
      4. Problem-Division of Integers or Directed Numbers with Unlike Signs
    4. Problem-Division of Integers or Directed Numbers with Unlike Signs
      520 views
      5. Division of an Integers or Directed Numbers by 0 is Not Possible
    5. Division of an Integers or Directed Numbers by 0 is Not Possible
      427 views
      6. Problem-Division of an Integers or Directed Numbers by 0 is Not Possible
    6. Problem-Division of an Integers or Directed Numbers by 0 is Not Possible
      361 views
      7. Simplifying Expressions Involving Integers or Directed Numbers
    7. Simplifying Expressions Involving Integers or Directed Numbers
      219 views

    Chapter 2 Algebraic expressions and equations ( 32 videos)  (Practice Test)

      2.1: Substitution into algebraic expressions.
      Evaluation of Algebraic Expressions
    1. Evaluation of Algebraic Expressions
      1713 views
      2. Problem-Evaluation of Algebraic Expressions
    2. Problem-Evaluation of Algebraic Expressions
      1411 views
      2.2: Operations on algebraic expressions (Practice Test)
      Row-Wise Addition of Algebraic Expressions
    1. Row-Wise Addition of Algebraic Expressions
      1084 views
      2. Problem-Row-Wise Addition of Algebraic Expressions
    2. Problem-Row-Wise Addition of Algebraic Expressions
      784 views
      3. Column-Wise Addition of Algebraic Expressions
    3. Column-Wise Addition of Algebraic Expressions
      756 views
      4. Problem-Column-Wise Addition of Algebraic Expressions
    4. Problem-Column-Wise Addition of Algebraic Expressions
      645 views
      5. Row-Wise Subtraction of Algebraic Expressions
    5. Row-Wise Subtraction of Algebraic Expressions
      887 views
      6. Problem-Row-Wise Subtraction of Algebraic Expressions
    6. Problem-Row-Wise Subtraction of Algebraic Expressions
      650 views
      7. Problem-Column-Wise Subtraction of Algebraic Expressions
    7. Problem-Column-Wise Subtraction of Algebraic Expressions
      734 views
      8. Simplification of Algebraic Expressions
    8. Simplification of Algebraic Expressions
      1639 views
      2.3: Algebraic equations
      Problem-Algebraic Equations
    1. Problem-Algebraic Equations
      1273 views
      2.4: Solving algebraic equations (Practice Test)
      Solving Fractional Linear Equations
    1. Solving Fractional Linear Equations
      699 views
      2. Problem-Solving Fractional Linear Equations
    2. Problem-Solving Fractional Linear Equations
      522 views
      3. Solving Linear Equation by Collecting Like Terms
    3. Solving Linear Equation by Collecting Like Terms
      444 views
      4. Solving Linear Equation Involving Fractional Coefficients
    4. Solving Linear Equation Involving Fractional Coefficients
      1583 views
      5. Problem-Solving Linear Equation Involving Fractional Coefficients
    5. Problem-Solving Linear Equation Involving Fractional Coefficients
      1385 views
      2.5: Factorisation of Algebraic Expressions
      Factorization
    1. Factorization
      12533 views
      2. Problem-Factorization of Algebraic Expressions
    2. Problem-Factorization of Algebraic Expressions
      2708 views
      2.6: Algebraic fractions-binomial
      Problem on Product of Binomial with Same First Term-p1
    1. Problem on Product of Binomial with Same First Term-p1
      1057 views
      2. Problem on Product of Binomial with Same First Term-p2
    2. Problem on Product of Binomial with Same First Term-p2
      971 views
      2.7: Binomial products (Practice Test)
      Product of Same Binomial
    1. Product of Same Binomial
      1351 views
      2. More on Product of Same Binomial
    2. More on Product of Same Binomial
      1063 views
      3. Problem-Product of Same Binomial
    3. Problem-Product of Same Binomial
      986 views
      2.8: Expansions leading to the difference of two squares (Practice Test)
      Difference of square of two terms
    1. Difference of square of two terms
      2089 views
      2. Problem1-Difference of Square of Two Terms
    2. Problem1-Difference of Square of Two Terms
      1176 views
      3. Problem2-Difference of Square of Two Terms
    3. Problem2-Difference of Square of Two Terms
      1038 views
      4. Application of Difference of Square of Two Terms
    4. Application of Difference of Square of Two Terms
      1304 views
      2.9: Highest common factor (Practice Test)
      HCF by prime factorization
    1. HCF by prime factorization
      2. HCF by Venn Diagram
    2. HCF by Venn Diagram
      3. HCF of 2 or 3 numbers by prime factorization method
    3. HCF of 2 or 3 numbers by prime factorization method
      4. HCF of 2 or 3 numbers by division method
    4. HCF of 2 or 3 numbers by division method
      2.10: Factors by grouping
      Factors and multiples of numbers
    1. Factors and multiples of numbers

    Chapter 3 Simultaneous linear equations ( 4 videos)

      3.1: Simultaneous equations (Practice Test)
      Recognizing and formation of Linear Equations in One and Two Variables
    1. Recognizing and formation of Linear Equations in One and Two Variables
      467 views
      2. Solution of Two Linear Equations Involving Two Variables
    2. Solution of Two Linear Equations Involving Two Variables
      226 views
      3. Problem-Solution of Two Linear Equations Involving Two Variables
    3. Problem-Solution of Two Linear Equations Involving Two Variables
      671 views
      3.2: Elimination method
      Finding Solution Using Method of Equating the Coefficients
    1. Finding Solution Using Method of Equating the Coefficients
      4365 views

    Chapter 4 Indices/exponents ( 13 videos)  (Practice Test)

      4.1: Adding indices when multiplying terms with the same base
      Problem-Power or Exponent or Indices of Literal Number
    1. Problem-Power or Exponent or Indices of Literal Number
      1450 views
      2. Product Law of Exponents of Rational Numbers
    2. Product Law of Exponents of Rational Numbers
      672 views
      3. Problem-Product Law of Exponents of Rational Numbers
    3. Problem-Product Law of Exponents of Rational Numbers
      1082 views
      4.2: Subtracting indices when dividing terms with the same base
      Quotient Law of Exponents of Rational Numbers
    1. Quotient Law of Exponents of Rational Numbers
      537 views
      2. Problem-Quotient Law of Exponents of Rational Numbers
    2. Problem-Quotient Law of Exponents of Rational Numbers
      856 views
      4.3: Multiplying indices when raising a power to a power
      Power Law of Rational Numbers
    1. Power Law of Rational Numbers
      386 views
      2. Problem-Power Law of Rational Numbers
    2. Problem-Power Law of Rational Numbers
      667 views
      4.4: Multiplying indices when raising to more than one term
      Demonstration of the concept of power of an integer
    1. Demonstration of the concept of power of an integer
      360 views
      4.5: Terms raised to the power of zero
      Zero and negative indices
    1. Zero and negative indices
      1286 views
      4.6: Negative Indices
      Zero and negative indices
    1. Zero and negative indices
      1286 views
      2. Problem-Negative Exponent of Rational Numbers
    2. Problem-Negative Exponent of Rational Numbers
      637 views
      4.7: Complex fractions as indices
      Applications of Laws of Exponents
    1. Applications of Laws of Exponents
      2191 views
      2. Problem-Applying Laws of Exponents to Evaluate Expressions
    2. Problem-Applying Laws of Exponents to Evaluate Expressions
      412 views

    Chapter 5 Statistics ( 21 videos)  (Practice Test)

      5.1: Data-Line graphs (Practice Test)
      Read and interpret simple line graph
    1. Read and interpret simple line graph
      2. Use line graph to solve real life problems
    2. Use line graph to solve real life problems
      3. Frequency Distribution
    3. Frequency Distribution
      13271 views
      4. Problem-Frequency Distribution
    4. Problem-Frequency Distribution
      5188 views
      5.2: Frequency histograms and polygons (Practice Test)
      Introducing and Constructing Histogram
    1. Introducing and Constructing Histogram
      3765 views
      2. Problem-Introducing and Constructing Histogram
    2. Problem-Introducing and Constructing Histogram
      2156 views
      3. Problem-Concept of Histogram
    3. Problem-Concept of Histogram
      654 views
      5.3: Relative frequency
      Class Relative Frequency and Percentage
    1. Class Relative Frequency and Percentage
      44 views
      5.4: The mode
      Mode for Ungrouped Data
    1. Mode for Ungrouped Data
      1778 views
      2. Problem-Mode for Ungrouped Data
    2. Problem-Mode for Ungrouped Data
      1130 views
      5.5: The mean
      Arithmetic Mean of Raw Data-Direct Method
    1. Arithmetic Mean of Raw Data-Direct Method
      4101 views
      2. Problem-Concept of an Average ( Arithmetic Mean )
    2. Problem-Concept of an Average ( Arithmetic Mean )
      703 views
      5.6: The median
      Median of Primary Data
    1. Median of Primary Data
      166 views
      2. Problem-Median of Primary Data
    2. Problem-Median of Primary Data
      131 views
      5.7: Calculating mean, mode and median from grouped data (Practice Test)
      Arithmetic Mean for Grouped Data-Direct Method
    1. Arithmetic Mean for Grouped Data-Direct Method
      3278 views
      2. Problem-Arithmetic Mean for Grouped Data-Direct Method
    2. Problem-Arithmetic Mean for Grouped Data-Direct Method
      1833 views
      3. Median for Grouped Discrete Data
    3. Median for Grouped Discrete Data
      1478 views
      4. Problem-Median for Grouped Discrete Data
    4. Problem-Median for Grouped Discrete Data
      843 views
      5. Mode for Grouped Continuous Data
    5. Mode for Grouped Continuous Data
      723 views
      5.8: Stem and Leaf Plots along with Box and Whisker Plots (Practice Test)
      Stem and Leaf Diagram
    1. Stem and Leaf Diagram
      269 views
      2. Box-and-Whisker Plots
    2. Box-and-Whisker Plots
      152 views

    Chapter 6 Quadratic equations ( 13 videos)  (Practice Test)

      6.1: Introduction to quadratic equations
      Quadratic Equations in 1 Variable
    1. Quadratic Equations in 1 Variable
      31751 views
      2. Problem-Quadratic Equations in 1 Variable
    2. Problem-Quadratic Equations in 1 Variable
      15016 views
      6.2: Quadratic equations with factorisation.
      Solving Quadratic Equations by Factorization
    1. Solving Quadratic Equations by Factorization
      12270 views
      2. Problem-Solving Quadratic Equations by Factorization
    2. Problem-Solving Quadratic Equations by Factorization
      5593 views
      6.3: Solving quadratic equations by completing the square
      Solving Quadratic Equations-Completing Squares
    1. Solving Quadratic Equations-Completing Squares
      16996 views
      2. Problem1-Solving Quadratic Equations-Completing Squares
    2. Problem1-Solving Quadratic Equations-Completing Squares
      7632 views
      3. Problem2-Solving Quadratic Equations-Completing Squares
    3. Problem2-Solving Quadratic Equations-Completing Squares
      5835 views
      6.4: The quadratic formula (Practice Test)
      Derivation of Quadratic Formula by Completing Square
    1. Derivation of Quadratic Formula by Completing Square
      5622 views
      2. Problem-Derivation of Quadratic Formula by Completing Square
    2. Problem-Derivation of Quadratic Formula by Completing Square
      3299 views
      3. Solving Quadratic Equation-Quadratic Formula
    3. Solving Quadratic Equation-Quadratic Formula
      4757 views
      4. Problem1-Solving Quadratic Equation-Quadratic Formula
    4. Problem1-Solving Quadratic Equation-Quadratic Formula
      3136 views
      5. Problem2-Solving Quadratic Equation-Quadratic Formula
    5. Problem2-Solving Quadratic Equation-Quadratic Formula
      3132 views
      6.5: Problem solving with quadratic equations
      Problem-Solving Involving Quadratic Equations
    1. Problem-Solving Involving Quadratic Equations
      1003 views

    Chapter 7 Percentages ( 2 videos)

      7.1: Changing percentages to fractions and decimals
      Convert Whole number percentage to fraction
    1. Convert Whole number percentage to fraction
      7.2: One quantity as a percentage of another
      Recognize percentage as a special kind of fraction
    1. Recognize percentage as a special kind of fraction

    Chapter 8 Surds ( 12 videos)  (Practice Test)

      8.1: Introducing surds
      Introduction to Surds
    1. Introduction to Surds
      4995 views
      2. Problem-Introduction to Surds
    2. Problem-Introduction to Surds
      2302 views
      8.2: Adding and subtracting like surds (Practice Test)
      Addition and subtraction of surds
    1. Addition and subtraction of surds
      2372 views
      2. Problem1-Addition and subtraction of surds
    2. Problem1-Addition and subtraction of surds
      1080 views
      3. Problem2-Addition and subtraction of surds
    3. Problem2-Addition and subtraction of surds
      1234 views
      4. Multiplication and Division of Surds
    4. Multiplication and Division of Surds
      1658 views
      5. Problem1-Multiplication and Division of Surds
    5. Problem1-Multiplication and Division of Surds
      1028 views
      6. Problem2-Multiplication and Division of Surds
    6. Problem2-Multiplication and Division of Surds
      831 views
      8.3: Rationalising the denominator (Practice Test)
      Introduction to Rationalization
    1. Introduction to Rationalization
      2315 views
      2. Rationalizing denominator and its types
    2. Rationalizing denominator and its types
      1737 views
      3. Problem1-Rationalizing denominator
    3. Problem1-Rationalizing denominator
      1843 views
      4. Problem2-Rationalizing denominator
    4. Problem2-Rationalizing denominator
      1741 views

    Chapter 9 Pythagoras Theorem ( 5 videos)  (Practice Test)

      9.1: Calculating a leg of a right-angled triangle
      Pythagoras Theorem
    1. Pythagoras Theorem
      8494 views
      2. Problem1-Pythagoras Theorem
    2. Problem1-Pythagoras Theorem
      2735 views
      3. Problem2-Pythagoras Theorem
    3. Problem2-Pythagoras Theorem
      1756 views
      9.2: Proofs of Pythagoras theorem (Practice Test)
      Pythagoras Theorem
    1. Pythagoras Theorem
      951 views
      2. Solution of Right Angle Triangle through Pythagoras Theorem
    2. Solution of Right Angle Triangle through Pythagoras Theorem
      1056 views