Pass Your GCSE Maths with Confidence – from £8.25/month

Gain the edge you need to succeed with 21C Pocket Maths. Our affordable, complete learning platform comprises video lessons, interactive games, and in-depth resources—everything you need to build confidence and achieve top grades in GCSE maths.

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Why Choose Pocket Maths?

Pocket Maths makes learning GCSE maths easy, enjoyable, and effective. Here’s why we stand out:

Master GCSE and IGCSE Maths with Pocket Maths

Our curriculum, created by top teachers, fully aligns with AQA, Edexcel, CIE, and all major GCSE and IGCSE exam boards. Covering everything you need to know, Pocket Maths is more than just revision—it’s a complete learning experience that builds proper understanding.

We’ve designed each topic to build your confidence and ensure you’re learning maths for life—not just for exams.

What Makes Pocket Maths Different?

At Pocket Maths, we don’t just throw resources at you. Every lesson, game, and question is crafted to help you genuinely understand maths, not just memorise it. This unique approach means you’ll experience quality, depth, and lasting impact. Whether aiming to pass or master maths, Pocket Maths gives you all the tools to succeed.

Join students who are already boosting their skills with Pocket Maths. Get started today for GCSE success!

Number

Master fractions, decimals, percentages, and ratios—essential skills that are the foundation for all other maths topics.

Algebra

Build confidence with algebraic expressions, equations, and graphs to prepare you for any question.

Geometry

Understand shapes, angles, transformations, and trigonometry—skills you'll need to visualise and solve real-world problems.

Propability and Statistics

Develop a clear understanding of data, probability, and statistics—crucial skills for exams and everyday life.

Ratio and Proportion

Get to grips with ratios and rates, which are essential not just for exams but also for practical subjects like science and economics.

Scheme of Learning:

Adding of numbers up to HTU + HTU
Subtraction of numbers up to HTU – HTU
Multiplication of numbers up to HTU x HTU
Division by numbers 1-12 and 15, resulting in integer answers
Division by numbers 1-12 and 15, resulting in decimal answers
Solving quantity problems with addition, subtraction and multiplication
Solving quantity problems including division
Listing factors and multiples
Identifying primes
Evaluate powers
Evaluate roots up to the square root of 169
Follow the correct order of operations for the four main operations
Follow the correct order of operations including indices and roots
Insert brackets correctly to make a sum correct
List factors or multiples to find the HCF or LCM
Solve applied factor or multiple problems including with time
Express a number as a product of its prime factors
Use Venn diagrams and prime factor form to find HCFs and LCMs
Add and subtract with negative numbers
Multiply and divide with negative numbers
Perform multistep calculations involving negatives
Calculate utility bills
Evaluate with negative integer and zero indices
Simplify fractions
Find a missing numerator or denominator based on equivalent fractions
Compare two fractions with different denominators
Order three or four fractions with different denominators
Find which of two fractions is closer to 1
Evaluate a unit-fraction of an amount
Evaluate a non-unit-fraction of an amount
Work back from a non-unit-fraction of an amount to the original amount
Convert mixed numbers into improper fractions
Convert improper fractions into mixed numbers
Multiply fractions by other fractions or integers
Divide fractions or integers by fractions
Add or subtract fractions with different denominators
Calculate with mixed numbers using any of the four operations
Find shaded fractions of shapes using fraction equivalence
State the value of digits within numbers up to 5 digits long
Use given digits to make smallest/largest even/odd numbers, or multiples of 5
Round numbers to the nearest 10, 100 or 1000
Order decimal numbers by considering place value
Add and subtract decimals by considering place value
Multiply and divide numbers by powers of 10
Round numbers to a specified number of decimal places
Round numbers whose first digit is non-zero to a specified number of significant figures
Round numbers whose first digit is a zero to a specified number of significant figures
Estimate calculations including consideration of the order of operations
Multiply decimals up to 3 digits by 2 digits 
Divide integers and decimals by decimals with digits up to 12
Find error intervals for numbers that were rounded to nearest 10, 100 or a specified number of decimal places
Find error intervals based on truncated numbers
Write ordinary numbers as standard form numbers 
Convert standard form numbers to ordinary numbers
Multiply two standard form numbers
Divide two standard form numbers
Add and subtract two standard form numbers
Convert decimals and percentages into fractions
Convert fractions into decimals and percentages
Calculate 50%, 25%, 20%, 10% and 5% of integers
Calculate any integer percentage of numbers
Increase and decrease amounts by a percentage
Calculate in worded scenarios with fractions, decimals and/or percentages of amounts
Work from a given percentage back to an original amount
Increase and decrease amounts by compound percentage
Calculate percentage change from two given amounts
Write expressions to represent the four main operations
Collect like terms using addition only
Collect like terms using addition and subtraction
Represent multiplicative relationships using index laws
Simplify using addition and subtraction index laws
Simplify using multiplicative index law 
Collect like terms including with powers
Expand a bracket of the form a(x+-b)
Expand a bracket of the form x(x+-b) and ax^n(bx^n+-c) where one of a and b = 1
Expand a pair of brackets of the form a(x+-b) and simplify including negatives
Factorise an expression of the form ax+-b
Factorise an expression of the form x^n +-bx
Simplify expressions of the form ax^n x bx^m, ax^n / bx^n and (ax^n)^m
Factorise an expression including two variables or higher powers
Expand double brackets of the form (x+a)(x+b)
Expand double brackets of the form (ax+-b)(cx+-d)
Factorise a quadratic of the form x^n + bx + c
Factorise quadratics of the form x^n +- bx +- c
Substitute positive integers into simple expressions of the form ax+-b
Substitute positive integers into expressions involving the order of operations
Substitute negatives or fractions into expressions 
Generate terms in a sequence using a linear nth term
Identify an nth term expression of the form an+-b and use it to find a higher term in the sequence
Use solving techniques to see if a number is in a linear sequence
Plot and identify equations of horizontal and vertical lines
Plot lines of the form y=ax+-b using a table of values
Plot lines of the form y=a-bx using a table of values
Plot lines by considering the gradient and intercept on a unit grid
Plot lines by considering the gradient and intercept on a non-unit grid
Plot lines that require rearranging first
Identify equations of linear graphs
Find equations of linear graphs from two given coordinates
Use two given coordinates on a linear graph to find another point based on a ratio or fraction
Generate terms of a quadratic sequence
Plot a non-linear graph using a table of values (cubic, reciprocal and exponential)
Identify non-linear graphs (cubic, reciprocal and exponential)
Evaluate outputs in two-step function machines and work back from given outputs
Solve equations of the type ax +- b = c with integers
Solve equations of the type ax +- b = c fractional/negative solutions
Solve equations of the type x/a+-b = c
Solve equations of the form ax+-b = cx+-d
Solve equations of the form ax+-b = c-dx, a-bx = dx+-c and a-bx = c-dx with integer solutions
Solve equations with x’s on both sides with negative or fractional solutions
Solve equations with x’s on both sides involving the expansion of brackets
Solve equations with x’s on both sides where one side is a fractional expression
List integers that satisfy a given inequality 
Solve two-step inequalities of the form ax+-b><c and represent solutions on a number line
Solve two-step inequallities of the form a<bx+-c<d and represent solutions on a number line
Identify inequalities from given number lines
Form and solve two-step equations from given perimeters or known angle sums
Form and solve equations with x on both sides based on equal sides or equal angles 
Form and solve a mixture of two-step and equations with x’s on both sides including the use of brackets
Form and solve two-step equations based on worded relationships, including the use of brackets
Rearrange two-step formulae involving the four operations
Rearrange formulae including roots and powers
Solve simultaneous equations with positive coefficients
Solve simultaneous equations with negatives
Solve simultaneous equations with fractions
Solve quadratics of the form x^n + ax + b = 0
Solve quadratics of the form x^n +- ax +- b = 0
Identify turning points and solutions of given quadratic graphs 
Name 2D shapes
Identify how many lines of symmetry a 2D shape has, and it’s order of rotational symmetry
Identify congruent 2D shapes
Find area and perimeter of 2D shapes shown on grids – squares, rectangles and simple compound shapes
Find area and perimeter of rectangles with given measurements
Work back from given areas/perimeters of rectangles and find whichever was not given
Find area and perimeter of triangles using both grids and given measurements
Solve applied problems involving the area/perimeter of rectangles and triangles
Find area and perimeter of compound shapes including triangular parts, where measurements are given
Find area and perimeter of parallelograms using both grids and given measurements
Find area and perimeter of trapeziums using both grids and given measurements
Solve applied problems involving area/perimeter of trapezium and compound shapes
Work backwards from given areas of triangles/parallelograms/trapeziums
Naming types of triangle
Identifying types of angles
Drawing and measuring angles
Find missing angles in scalene triangles, quadrilaterals along a line and around a point
Find missing angles in isosceles and equilateral triangles
Solve multistep 2D angle problems (e.g. involving angles in a triangle and around a point)
Find interior angles of regular and irregular polygons
Find angles in adjoining regular and irregular polygons
Find angles in polygons using ratio, descriptions and algebra
Find the number of sides of a polygon based on an exterior angle
Identify alternate, corresponding and co-interior angles on parallel lines
Solve problems using parallel line facts alongside other angle facts
Find missing sides in right-angled triangles using Pythagoras’ theorem
Find areas/perimeters of 2D shapes using Pythagoras’ theorem
Find missing lengths in right-angled triangles using Trigonometry, where the unknown is the numerator
Find missing lengths in right-angled triangles using Trigonometry, including where the denominator is unknown
Find missing angles in right-angled triangles using Trigonometry
Find missing lengths in similar 2D shapes
Find missing lengths in nested triangles
Naming 2D shapes and 3D solids
Identifying number of faces, vertices and edges of 3D shapes
Draw accurate nets of cuboids
Naming solids from nets
Find volume of cuboids, triangular prisms, and trapezium-faced prisms
Find volume of compound prisms
Find surface area of cuboids
Find surface area of triangular prisms, trapezium-faced prisms and compound prisms
Finding missing lengths of cubes based on volume or surface area
Finding missing lengths of various prisms 
Solve applied cuboid problems involving volume or surface area
Label parts of circles
Find the area and circumference of circles in exact and rounded forms
Find the area and perimeter of quarter/semi-circles
Find missing radii / diameter from given areas/circumferences
Solve applied area/perimeter problems involving semi/quarter-circles
Find volume and surface area of cylinders in exact and rounded forms
Solve applied volume and surface area problems relating to cylinders
Find arcs and areas of sectors 
Create perpendicular and angle biscectors using compasses
Solve applied problems involving loci
Convert metric units of length, weight and capacity
Convert between units of time
Plot and read distance-time graphs involving simple speed calculations
Solve Speed-Distance-Time problems including use of decimal operatios
Solve Density-Mass-Volume problems including missing lengths of cuboids
Solve Pressure-Force-Area problems with a variety of prisms
Find speeds or densities from problems involving two or more combined distances/volumes
Performing translations
Performing reflections in horizontal, vertical and diagonal (y=x) lines
Performing rotations
Describing translations, reflections and rotations
Multistep translation, reflection and rotation problems
Performing enlargements (positive scale factor only)
Describing enlargements
Perform Enlargement / Describe enlargement
Draw column vectors on a grid
Add, subtract and multiply two column vectors 
Write events as fractional probabilities and represent on probability scales
Use probabilities summing to 1 to find missing probabilities (in decimal, percentage and fractional form)
Represent outcomes in Sample Space diagrams
List outcomes that are a combination of two variables
Find conditional and non-conditional probabilities from given two-way-tables
Construct two-way-tables from listed information and find conditional and non-conditional probabilities
Complete frequency trees from listed information and find conditional and non-conditional probabilities
Complete tables of probability adding to 1, and use to find frequency estimates
Complete tables of probability with more than one missing value, using algebra or ratio
Complete non-conditional tree diagrams and find probabilities from them
Complete two-way Venn diagrams
Find conditional and non-conditional probabilities from Venn diagrams (not using set notation)
Find mean, median, mode and range from lists of numbers
Find mode of qualitative data from a variety of simple graphs
Freq tables / grouped freq tables
Find mean, median and mode from non-grouped frequency tables and from bar graphs
Find mean, median and mode from grouped frequency tables and from bar graphs
Find a mean for a subset or total set of data by working backwards from another mean
Interpret timetables 
Complete and interpret bar charts including with non-unitary scales
Complete and interpret comparative / composite bar charts including with non-unitary scales
Draw and interpret pictograms
Complete a Stem and Leaf diagram from a list of data
Find averages from a Stem and Leaf diagram
Compare distributions from a back-to-back Stem and Leaf diagram using range and median
Draw pie charts to represent data
Use proportionality to interpret and compare pie charts
Draw Frequency Polygons including with non-unitary scales
Complete and describe scatter graphs; interpolate and caution against extrapolation
Interpret time series graphs
Simplify ratio
Rewrite ratios in the form 1:n or n:1
Convert ratio into a fraction / percentage and vice versa
Share an amount by a given ratio
Use a ratio based on a given part, total or difference
Solve multistep problems involving ratio and fractions/percentages
Solve applied ratio problems including use of LCM, multiplication
Use unitary proportion method for weights, prices etc
Use unitary proportion to find better value for money items
Use unitary proportion to find quantities needed in recipes
Consider limiting ingredients in recipes
Convert between currencies
Use conversion graphs to convert quantities including when extrapolation is needed
Use direct proportion to solve problems e.g. sampling
Use inverse proportion to solve contextual problems

Personalised Learning Tailored for GCSE Maths Success

21C Pocket Maths adapts to each student’s pace and learning style, making GCSE maths accessible and challenging. Our platform continuously adjusts lesson difficulty, helping students grow confidently without feeling overwhelmed.
Adaptive Learning Paths​

Adaptive Learning Paths

Follow a learning path that adapts to your progress, ensuring you are supported and challenged every step.

Interactive Content​

Interactive Content

Enjoy maths with fun quizzes, games, and lessons designed to keep you motivated and actively learning.

Real-Time Feedback​

Real-Time Feedback

Receive instant insights on your progress, helping you stay focused and reach your maths goals.

Engaging and Interactive Learning Made Fun

21C Pocket Maths transforms traditional learning with an interactive approach that turns studying into an adventure. With gamified quizzes, helpful AI avatars, and progressive challenges, students stay motivated and engaged every step of the way.
Engaging and Interactive Learning

Flexible, On-the-Go Learning with Pocket Maths 

21C Pocket Maths allows you to learn on your terms, with full accessibility across all devices—whether at home, on the go, or anywhere else. The platform’s plug-and-play design ensures your learning continues uninterrupted wherever you are.
Multi-Device Accessibility​​

Multi-Device Accessibility​

Use Pocket Maths on any device—desktop, tablet, or smartphone.
Flexible Learning​​

Flexible Learning​

Study on your terms, fitting learning around your life.
Offline Access​​

Offline Access​

Download lessons and quizzes to keep learning, even without Wi-Fi.

Affordable, High-Quality Maths Education for All

21C Pocket Maths offers flexible, affordable subscription plans, making high-quality maths education accessible to everyone. With a curriculum designed to improve learning outcomes, 21C Pocket Maths ensures real progress without the high cost.
Affordable, High-Quality

Expert-Led, AI-Powered, Globally Recognised

21C Pocket Maths goes beyond a typical learning platform. Developed by leading maths educators and powered by adaptive AI, it delivers a personalised learning experience aligned with international standards to ensure student success.

Expert-Designed Curriculum​

Expert-Designed Curriculum​​
Our curriculum, designed by top maths educators, provides a solid foundation for academic success.

AI-Powered Learning​

AI-Powered Learning​​
Adaptive AI adjusts to your learning pace, offering personalised support exactly when needed.

Global Recognition

Global Recognition​
Aligned with internationally recognised GCSE/IGCSE standards, 21C Pocket Maths prepares students for exam success and future achievements.

Hear from Those Who’ve Benefited 

Students, parents, and lifelong learners are seeing real improvements in their maths skills with 21C Pocket Maths. Here’s what they have to say: 

As a long-standing consultant for State Schools in finance, I endorse 21C’s digital learning system. It improves maths teaching in classrooms and aids students needing extra help. My two-year experience with 21C convinces me it’ll meet most teacher needs.
John_Milne​
John Milne
Co-founder and MD of Constellation Group, a former Headmaster and Principal
As a seasoned consultant for State Schools, especially in finance, I commend 21C for its impact on teachers and students. This digital system bolsters maths education in class and remotely. With two years at 21C, I’m confident it’ll satisfy key teaching needs.
Julian Geary
Julian Geary
Independent Education Advisor to Academies and Local Authority Schools
Knowledge Platform’s collaboration with 21C, based on years of digital maths education expertise, has been crucial in developing their teaching platform. Our combined knowledge of children’s learning styles and digital innovation tackles significant educational challenges for teachers and students.
Mahboob Mahmood
Mahboob Mohammed
CEO, Knowledge Platform Singapore

We’re Here to Support Your Learning

Whether you need assistance with the platform or want to learn more about how 21C Pocket Maths can support your learning journey, we’re here to help. 

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