Key Stage 3 Topics
Practice questions for every KS3 topic with papers self-mark so you can track progress.

2D shapes

Identify and name 2D shapes and find angles in kites and parallelograms

3D shapes

Identify 3D shapes and find faces, edges and vertices of prisms

Add and subtract decimals

Add and subtract decimals using the column method

Add and subtract fractions

Add and subtract fractions and mixed numbers including word problems

Addition and subtraction

Add and subtract two and three-digit numbers using the column method including borrowing

Angle facts

Angles on a straight line, on a point and vertically opposite angles

Angles in triangles

Find angles in triangles including right-angled, isosceles and rectangle problems

Angles with algebra

Solve angle problems using algebra in triangles, parallel lines and shapes

Area of compound shapes

Calculate area of compound shapes including rectangles, triangles and missing parts

Area of rectangles and triangles

Calculate area of rectangles, triangles and parallelograms

Area of trapezia

Calculate area of trapezia and find missing sides using the trapezium formula

Averages from a list

Find mean, median, mode and range from a list of numbers

Averages from a stem and leaf diagram

Find mode, median and range from stem and leaf diagrams

Averages from a table

Find mean, median and mode from frequency tables including grouped data

Bar charts

Draw and compare bar charts including composite and comparative

Best buys

Find the cheapest shop and best value item

Change the subject

Rearrange formulae to change the subject of equations

Circle area

Calculate the area of circles from the radius and diameter

Circle circumference

Calculate the circumference of circles from the radius and diameter

Collect like terms

Simplify expressions with including terms with powers and coefficients

Compare with ratios

Convert ratios and fractions including unit ratios and part comparisons

Congruence

Identify congruent shapes and prove congruent triangles

Construction and loci

Construct triangles, bisectors, and loci using ruler and compass methods

Convert fractions, decimals, percentages

Convert between fractions, decimals and percentages

Coordinates

Find and plot coordinates on graphs in all quadrants

Density

Calculate density, mass and volume using the density formula

Direct proportion

Solve direct proportion problems including recipes, exchange rates and exchange rates

Distance-time graphs

Interpret distance-time graphs to find speed, distance and average speed

Division

Divide numbers including powers of 10, short division (bus stop) and long division methods

Enlargements

Enlarge and describe enlargements using positive integer scale factors

Equations of straight-line graphs

Use gradients and y-intercepts to find y = mx + c

Estimate with scatter graphs

Draw and use the line of best fit to estimate values

Estimation

Estimate answers using facts, fractions and square roots in calculations

Expand linear expressions

Expand and simplify brackets

Expand quadratic expressions

Multiply out quadratic brackets then simplify

Experimental probability

Use experimental probability to calculate frequencies and expected outcomes

Exterior angles

Find exterior angles of polygons and use them to determine number of sides

Factorise linear expressions

Factorise common factors including numbers, letters or both

Factorise quadratic expressions

Factorise x^2 + bx + c

Factors and multiples

Find factors, multiples and prime numbers

Fraction of an amount

Find fractions of amounts and solve fraction worded problems

Fractions

Work with fractions including shading, simplifying, comparing and ordering

Frequency tables

Create and interpret frequency tables including grouped data and totals

Function machines

Use function machines including forward and inverse operations with numbers and letters

Gradients

Find gradients of straight-line graphs

HCF and LCM

Find highest common factors and lowest common multiples

HCF and LCM from prime factors

Find HCF and LCM using prime factorisation and Venn diagrams

Increase and decrease by percentage

Use percentages to Increase and decrease values and calculate simple interest

Inequalities on a number line

Show inequalities on number lines and interpret ranges of values

Interior angles

Find the interior angles of polygons and the number of sides

Inverse proportion

Solve inverse proportion problems from worded questions

Laws of indices

Apply laws of indices to simplify, multiply, divide and work with powers

Line charts and histograms

Draw and interpret line graphs and histograms (frequency diagrams)

Multiplication

Multiply numbers using the column method including two-digit numbers

Multiply and divide decimals

Multiply and divide decimals including worded problems and short division methods

Multiply and divide fractions

Multiply and divide fractions including mixed numbers and integers

Negative and fractional enlargements

Enlarge shapes using positive fractions and negative scale factors

Negative and fractional indices

Simplify expressions with negative and fractional powers using index laws

Negative numbers

Add, subtract, multiply and divide directed numbers

Order decimals

Order decimals using a place value grid

Order fractions, decimals, percentages

Convert then order fractions, decimals and percentages

Order of operations

Apply BIDMAS/BODMAS/PEDMAS to calculations

Parallel lines

Alternate, corresponding, interior angles and vertically opposite angles

Patterns and sequences

Find terms and rules in sequences including linear, Fibonacci and exponential patterns

Percentage change and reverse

Percentage increase, decrease, profit and reverse percentages

Percentages

Find and shade percentages of quantities and on square grids

Percentages of amounts

Find percentages using calculator and non-calculator methods

Perimeter

Calculate perimeter of rectangles, triangles, parallelograms and compound shapes

Pictograms

Read, complete and interpret pictograms using keys and scale values

Pie charts

Draw and interpret pie charts to find frequencies and data values

Place value

Understand place value, convert words and digits and form numbers from given digits

Plot non-linear graphs

Plot quadratic, cubic, reciprocal and exponential functions

Plot straight-line graphs

Draw linear graphs using the y-intercept and gradient

Powers and roots

Calculate powers and roots including squares, cubes and cube roots

Pressure

Calculate pressure, force and area using the pressure formula

Probability from events

Find probabilities using mutually exclusive events and frequency trees

Probability from outcomes

List outcomes and use sample space diagrams to calculate probability

Probability scale

Use probability words and show probabilities on a scale

Product of prime factors

Write numbers as a product of prime factors using index form and factor trees

Pythagoras theorem

Use Pythagoras' theorem to find missing sides and recognise triples

Real-life graphs

Interpret real-life graphs including gradients, intercepts and time series data

Reflections

Reflect and describe reflections using a mirror line

Repeated percentage change

Calculate compound interest and depreciation

Rotations

Rotate and describe rotations using direction and turns

Rounding

Round numbers to significant figures, decimal places and nearest power of 10

Rounding error

Find error intervals using rounding to estimate maximum and minimum bounds

Scale

Use scale factors to create scale drawings and find real lengths from maps

Scatter graphs

Plot scatter graphs and identify correlation

Share ratios

Share amounts using ratios including two-part and three-part ratios from totals

Similarity

Use similar triangles to find missing lengths using scale factors

Simplify algebraic products

Simplify algebraic products by multiplying variables, coefficients and negatives

Simplify ratios

Simplify ratios including decimals, different units and 3-part ratios

Simultaneous equations

Solve simultaneous equations using graphs and elimination

Solve 1-step equations

Solve one-step equations including multiplication, division and fractions with x

Solve 2-step equations

Solve two-step equations and inverse function machine problems

Solve 4-part equations

Solve multi-step equations including brackets and four-term expressions

Solve inequalities

Solve inequalities including 3-part and bracketed expressions

Solve quadratic equations

Solve quadratic equations including factorising and algebraic forms

Speed

Calculate speed, distance and time including average speed and unit conversions

Standard form calculations

Multiply, divide, add and subtract standard form

Standard form conversions

Convert to and from standard form

Stem and leaf diagrams

Draw stem and leaf diagrams including decimals and back-to-back displays

Substitution

Substitute values into expressions including positive and negative integers

Surface area of non-prisms

Find the surface area of pyramids, cones and spheres

Surface area of prisms

Calculate surface area of prisms and cylinders including using nets

Symmetry

Identify lines of symmetry and planes of symmetry in 2D and 3D shapes

The nth term

Find nth term rules and use linear sequences to generate or check terms

Translations

Translate and describe translations using vectors

Trigonometry

Use sine, cosine and tangent to find angles and side lengths in triangles

Two-way tables

Complete and interpret 2-way tables, timetables and distance tables

Units of area and volume conversion

Convert units of area and volume including square and cubic measurements

Venn diagrams

Complete Venn diagrams, sort sets, and find probability

Volume of non-prisms

Calculate the volume of pyramids, cones and spheres

Volume of prisms

Calculate the volume of prisms and cylinders

Write formulae

Write and interpret formulae including expressions and relationships between variables