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
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
- Understanding stem-and-leaf plots
- Stem-and-leaf plots of decimal data
- Skewness of the stem-and-leaf plot
- Level 1: Understanding box plots
- Level 2: Understanding box plots
- Understanding frequency tables
- Understanding histograms
- Skewness of histograms
Discrete mathematics