Math Buddy covers all the topics of grade 9. Topics include real numbers, algebra, polynomials, linear equations, quadrilaterals, circles, geometry, volume, surface area concepts, statistics, data representation, geometrical construction and many more interactive activities and assessments for better understanding of the math concepts.

The skills are organised into topics, and you can move your mouse over any skill name to view. To start practicing, just click on any link.

You can try out any of the activities for 10 minutes.

To get full access to all our features,

Sign Up!

Math Buddy Skills - Grade 9
 Introduction to real numbers
  1. 9.A.1   Review of numbers
  2. 9.A.2   Types of numbers
  3. 9.A.3   Insert rational numbers
  4. 9.A.4   Identify the number
  5. 9.A.5   Square root spiral
  6. 9.A.6   Square roots on the number line
  7. 9.A.7   Determination of irrational numbers
  8. 9.A.8   Battle ship game
  9. 9.A.9   Match the number to the number type
  10. 9.A.10   Sieve the numbers
  11. 9.A.11   Real Numbers - Combat zone
    1. 9.B.1   Degree and Coefficients of a Polynomial
    2. 9.B.2   Remainder Theorem
    3. 9.B.3   Factor Theorem
       Algebraic Identities and Factorization
      1. 9.C.1   Factorization using Common Factors
      2. 9.C.2   Factorization with identities - Difference of two Squares
      3. 9.C.3   Expansion of Algebraic Identities
      4. 9.C.4   Algebraic Identities - Missing term
      5. 9.C.5   Application of Algebraic Identities
      6. 9.C.6   Factorization with Cubic Identities
         Linear equations in two variables
        1. 9.D.1   Graph the equation
        2. 9.D.2   Types of slopes
        3. 9.D.3   Special types of equations
        4. 9.D.4   Graph the slope
        5. 9.D.5   Point slope form
        6. 9.D.6   Slopes of parallel and perpendicular lines
        7. 9.D.7   Linear equations - Combat zone
           Congruence in Triangles
          1. 9.E.1   SSS Congruence - Skill practice
          2. 9.E.2   Make the triangles congruent
          3. 9.E.3   Pick the corresponding parts
          4. 9.E.4   Fill the missing value
          5. 9.E.5   Pick the congruence property
          6. 9.E.6   Congruence - combat zone
             Properties of Quadrilaterals
            1. 9.F.1   Sum of Angles In a Quadrilateral
            2. 9.F.2   Sum of Angles In a Quadrilateral - Practice
            3. 9.F.3   Properties of a Parallelogram
            4. 9.F.4   Properties of a Parallelogram - Practice
            5. 9.F.5   Properties of a Rhombus
            6. 9.F.6   Properties of a Rhombus - Practice
            7. 9.F.7   Intercept Theorem
            8. 9.F.8   Midpoint Theorem
               Properties of Circles - I
              1. 9.G.1   Perpendicular from the Center to a Chord
              2. 9.G.2   Equal chords of a circle
              3. 9.G.3   Angle subtended by an arc at the center of a circle
              4. 9.G.4   Angle at the center - Skill Practice
                 Properties of Circles - II
                1. 9.H.1   Angles in the same segment of a circle
                2. 9.H.2   Angles in a semi-circle
                3. 9.H.3   Angles in the same segment - Skill Practice
                4. 9.H.4   Cyclic Quadrilaterals and their properties
                5. 9.H.5   Properties of Tangents of a Circle
                  1. 9.I.1   Rotation of polygons
                  2. 9.I.2   Combination of transformations
                  3. 9.I.3   Transformation sequence
                  4. 9.I.4   Find the co-ordinates
                  5. 9.I.5   Transformations - Combat zone
                     Coordinate Geometry
                    1. 9.J.1   Graph the point
                    2. 9.J.2   Abscissa and ordinate
                    3. 9.J.3   Which Quadrant?
                    4. 9.J.4   Slopes of lines
                    5. 9.J.5   Escape!
                    6. 9.J.6   Coordinate Geometry - Combat zone
                       Perimeter and Area of Plane Shapes
                      1. 9.K.1   Area of a Triangle
                      2. 9.K.2   Herons Formula for Area of a Triangle
                      3. 9.K.3   Area of a Triangle - Practice
                      4. 9.K.4   Area of a Quadrilateral
                      5. 9.K.5   Area of a Parallelogram
                      6. 9.K.6   Area of a Rhombus
                      7. 9.K.7   Area of a Trapezium
                         Volume and Surface Area Concepts
                        1. 9.L.1   Surface Area of Cubes and Cuboids
                        2. 9.L.2   Surface Area of a Cylinder
                        3. 9.L.3   Surface Area of a Cone
                        4. 9.L.4   Volume of a Prism
                        5. 9.L.5   Volume of a Cylinder
                        6. 9.L.6   Volume of a Cone
                           Volume and Surface Area - Practice
                          1. 9.M.1   Volume and Surface Areas of Cuboids - Practice
                          2. 9.M.2   Surface Area and Volume of Cylinders
                          3. 9.M.3   Comparison of Volumes of Cylinders
                          4. 9.M.4   Volume and Surface Area - Practice
                          5. 9.M.5   Comparison of Volumes of Cones
                             Tabular representation of data
                            1. 9.N.1   Presentation of data
                            2. 9.N.2   Frequency distribution
                            3. 9.N.3   Exclusive and Inclusive method
                            4. 9.N.4   Classes, class intervals, class mark and class size
                            5. 9.N.5   Construction of frequency distribution
                            6. 9.N.6   Grouped frequency distribution - Skill practice
                            7. 9.N.7   Cumulative frequency distribution
                            8. 9.N.8   Tabular data - Skill practice
                            9. 9.N.9   Tabular data - Combat zone
                               Graphical representation of data
                              1. 9.O.1   Bar graphs - Introduction
                              2. 9.O.2   Numbers or pictures?
                              3. 9.O.3   Interpret Bar graphs
                              4. 9.O.4   Histograms
                              5. 9.O.5   Multiple bar graphs
                              6. 9.O.6   Histogram - Inclusive to exclusive
                              7. 9.O.7   Histogram - Unequal class intervals
                              8. 9.O.8   Frequency polygon/Line graph
                              9. 9.O.9   Create line graphs
                              10. 9.O.10   Interpret histograms
                              11. 9.O.11   Interpret line graphs
                              12. 9.O.12   Graphical representation of data - Combat zone
                                 Central Tendency
                                1. 9.P.1   Central tendency - Mean values
                                2. 9.P.2   Central tendency - Median
                                3. 9.P.3   Central tendency - Mode
                                4. 9.P.4   Calculate mean for ungrouped data
                                5. 9.P.5   Calculate median for ungrouped data
                                6. 9.P.6   Calculate Measures
                                7. 9.P.7   Interpret measures from graph
                                8. 9.P.8   Missing data
                                9. 9.P.9   Measures - Combat zone
                                   Geometrical constructions
                                  1. 9.Q.1   Bisector of a given angle
                                  2. 9.Q.2   Perpendicular bisector of a given line
                                  3. 9.Q.3   Construct an angle of 60 degrees
                                  4. 9.Q.4   Construct a triangle when three sides are given
                                  5. 9.Q.5   Construct a triangle given its base, base angle and sum of other two sides
                                  6. 9.Q.6   Construct a triangle given its base, a base angle and the difference of the other two sides - Part I
                                  7. 9.Q.7   Construct a triangle given its base, a base angle and the difference of the other two sides - Part II
                                  8. 9.Q.8   Construct a triangle, given its perimeter and its two base angles