Year 9 skills

Numbers

Take the Numbers test

• Level 1: Addition and subtraction of negative numbers
• Level 2: Addition and subtraction of negative numbers
• Highest common factor and lowest common multiple
• Prime numbers
• Prime numbers within a range of numbers
• 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
• Financial mathematics - Identify the best deal
• Financial mathematics - Income and tax
• Financial mathematics - Profit, loss, markup and discount
• Financial mathematics - Simple interest
• Financial mathematics - Compound interest

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: Integer indices
• Level 2: Integer indices
• Factorise difference of squares
• Factorisation
• Symbolic substitution in algebraic expressions
• Solve linear equations
• Linear equations involving fractions
• Level 1: Solve word equations
• Solve symbolic linear equations
• Solve inequalities in a single variable
• Level 1: Solve the quadratic equation by factorisation
• Level 2: Solve the quadratic equation by factorisation

Geometry

• Level 1: Find the unknown angle
• Level 2: Find the unknown angle
• Level 1: Solve an equation to find the unknown angle in a triangle
• Level 2: Solve an equation to find the unknown angle in a triangle
• Congruent triangles
• Pythagoras theorem
• Calculate the properties of basic planar shapes
• Properties of polygons
• 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
• 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

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