Year 9 skills

Numbers

Take the Numbers test

• Highest common factor and lowest common multiple
• Simplify fractions
• Simplification of square and cubic roots
• Prime factorisation
• Evaluate expressions involving exponents
• Level 1: Scientific notation
• Level 2: Scientific notation
• Evaluate percentages
• Percentage change
• Solving proportionality relationships
• Finding values based on ratios
• Challenge Level 1: Find integer solutions to linear equations
• Challenge Level 2: Find integer solutions to linear equations
• Challenge Level 1: Find the right arithmetic operations
• Challenge Level 2: Find the right arithmetic operations
• Challenge Level 3: Find the right arithmetic operations
• Challenge Count occurrence of digits
• Challenge Numeric sequences from geometric shapes
• Challenge Prime factor decomposition
• Challenge Special numbers
• Challenge Sudoku

Algebra

Take the Algebra test

• Level 1: Simplification and expansion of algebraic expressions
• Level 2: Simplification and expansion of algebraic expressions
• Level 3: Simplification and expansion of algebraic expressions
• Level 1: Simplification of rational algebraic expressions
• Level 2: Simplification of rational algebraic expressions
• Level 1: Evaluate the exponent of an exponent
• Level 2: Evaluate the exponent of an exponent
• Level 1: Simplification of algebraic expressions involving integer indices
• Level 2: Simplification of algebraic expressions involving integer indices
• Factorise difference of squares
• Factorisation
• Symbolic substitution in algebraic expressions
• Solve linear equations
• Linear equations involving fractions
• Solve symbolic linear equations
• Solve inequalities in a single variable
• The quadratic equation

Geometry

• Congruent triangles
• Pythagoras theorem
• Calculate the properties of basic planar shapes
• Level 1: Calculate the properties of compound planar shapes
• Calculate the properties of basic three-dimensional shapes
• Calculate the area of a compound shape

Trigonometry

• Conversions between radians and degrees
• Evaluate trigonometric functions
• Calculations involving bearings

Coordinate geometry

• The gradient of a line
• Decide if a point is on a line
• Midpoint of a line
• Level 1: Distance between points on a line and the midpoint
• Level 2: Distance between points on a line and the midpoint
• Coordinates of the midpoint of a line
• Coordinates of points on a line
• Linear intercepts
• Properties of the parabola

Set theory

• Basic set operations
• Venn diagrams

Probability

• Probability of simple events
• Probability of compound events
• Level 1: Probabilities in two-step experiments
• Level 2: Probabilities in two-step experiments
• Challenge Winning the tic-tac-toe

Statistics

• Summary and spread of data
• Understanding bar charts

Discrete mathematics

• Permutations
• Combinations
• Challenge How to get home in bekomaze
• Challenge Tic-tac-toe