๐ข Class 8 ยท ages 12โ13 ยท CBSE ยท ICSE ยท state boards
Class 8 maths: the foundation year for boards
Class 8 is where algebra becomes serious. Identities, factorisation, roots, compound interest and 3D mensuration all arrive, and they feed straight into Classes 9 and 10. A solid Class 8 makes board years far calmer.
- Class 8
- Ages 12โ13
- Online, from any city
- Free practice included
The year ahead
What children learn in Class 8 maths
Rational numbers and exponents
Properties of rational numbers and more on powers.
Linear equations
Equations in one variable, including word problems and variables on both sides.
Algebraic expressions and identities
Multiplying expressions and the standard identities such as (a + b)ยฒ.
Factorisation
Taking out common factors and using identities to factorise.
Squares, cubes and roots
Perfect squares, square and cube roots and patterns.
Comparing quantities
Percentage change, profit and loss, and compound interest.
Mensuration
Area of trapeziums and polygons, surface area and volume of cubes, cuboids and cylinders.
Quadrilaterals, data, probability
Properties of quadrilaterals, grouped data and probability.
CBSE, ICSE and state boards teach very similar ideas but in a different order and depth, and textbooks are revised from time to time. Tell us your board, your textbook and the topic your child is on, and we will start there instead of guessing.
Common trouble spots
Where Class 8 children usually get stuck
- Memorising identities. Show (a + b)ยฒ with a square cut into four pieces so the middle 2ab is something you can see.
- Factorisation. It's multiplication in reverse. Practise expanding first, then reverse.
- Compound interest. Do year 1, year 2 and year 3 by hand before using the formula.
- Mensuration formulas. Understand where the formula comes from (area of base ร height) so you don't need to cram a dozen.
Start today
A four-week plan for home
Twenty to thirty minutes on most days is enough. Change the order if your child is already ahead on a topic.
- 01Week 1: Expressions and identities
Expand 5 expressions a day and check one identity with numbers.
- 02Week 2: Factorisation
Factorise, then expand to check. Aim for steady accuracy, not speed.
- 03Week 3: Interest and percentages
Hand-calculate compound interest for 3 years, then use the compound interest calculator to check.
- 04Week 4: Mensuration
Find surface area and volume of everyday objects like a box and a water bottle.
Exams do not move
How many weeks does your child have?
Enter the exam date and weekly hours. The free planner counts the weeks and splits them into a calm plan. Starting early leaves room for gaps, practice and full papers.
Free practice
Practise Class 8 maths at home
No sign-up, nothing to install. Each tool shows its working so your child learns the method.
Simple & compound interest calculator
Compare simple and compound interest on any amount, with yearly, half-yearly, quarterly, monthly or daily compounding and a year-by-year table.
Use the tool โPercentage calculator
Find X% of a number, what percent one number is of another, percentage change, add or take off a percentage, and reverse percentages.
Use the tool โArea, perimeter & volume calculator
Area, perimeter, circumference, volume and surface area for 12 shapes: rectangle, triangle, circle, cuboid, cylinder, cone, sphere and more.
Use the tool โQuadratic equation solver
Solve axยฒ + bx + c = 0 with the discriminant, both roots (including complex ones), the vertex and the factorised form, step by step.
Use the tool โScientific calculator
A free online scientific calculator with brackets, powers, roots, logs, trigonometry in degrees or radians, factorials and a history.
Use the tool โRead
Guides for parents
Maths, coding, AI & parents
How to prepare for maths exams: a revision plan that works (study tips for students)
A practical maths revision plan for students: audit your topics, build a timetable, practise past papers, keep a mistakes log, manage exam time and use free calculators to check your working. For school boards and international exams.
Read the guide โMaths, coding, AI & parents
BODMAS rule explained: order of operations with examples (PEMDAS, BIDMAS)
What BODMAS means (and PEMDAS and BIDMAS), the order to do brackets, powers, division, multiplication, addition and subtraction, worked examples, common mistakes, and free practice worksheets.
Read the guide โMaths, coding, AI & parents
Squares 1 to 30: list, table and cubes with tricks
Squares from 1 to 30: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225, 256, 289, 324, 361, 400 โฆ 900. Full table with cubes, quick tricks and square roots.
Read the guide โWorking with us
How online maths classes work
- Tell us about your child. Share the class, board, textbook or topic, what feels hard and how much time is available. A parent or guardian makes the enquiry.
- We confirm the fit. We suggest a starting point and confirm the format, time and availability before anything is booked. If an introductory lesson or assessment has a fee, we say so up front.
- Learn, practise and review. Interactive lessons with the child writing and talking, practice between sessions and a short update for parents. We do not promise marks or ranks.
Read more about Fun maths classes for kids.
Free notes and practice
Class 8 maths topics
Linear Equations in One Variable
Notes, solved examples and practice questions with answers.
Open the page โSquares and Square Roots
Notes, solved examples and practice questions with answers.
Open the page โCubes and Cube Roots
Notes, solved examples and practice questions with answers.
Open the page โExponents and Powers
Notes, solved examples and practice questions with answers.
Open the page โCompound Interest
Notes, solved examples and practice questions with answers.
Open the page โMensuration
Notes, solved examples and practice questions with answers.
Open the page โDirect and Inverse Proportion
Notes, solved examples and practice questions with answers.
Open the page โFactorisation
Notes, solved examples and practice questions with answers.
Open the page โLive online course
Maths for Class 8: 24 live classes
12 weeks, 2 a week, from โน275 a class in India (small group). See the week-by-week plan, the price for your country and how the demo class works.
FAQ
Class 8 maths: questions parents ask
Is Class 8 maths really harder than Class 7?
It feels harder because several algebra ideas arrive at once and are used immediately in later classes. The ideas themselves are learnable with clear steps and practice.
Should Class 8 students prepare for IOQM or Olympiads?
IOQM is open from Class 8, but only try it if school maths is comfortable and your child enjoys problem solving. See our IOQM guide for what to expect.
How many hours of maths practice a week is right?
For most Class 8 students, 20 to 30 focused minutes on most days beats one long session. Quality of attention matters more than hours.
My child is weak at algebra. Can online tuition fix it?
Good tuition finds the first gap (often fractions, integers or sign rules) and rebuilds from there. We can discuss this with a short conversation about what your child finds hard.
Start a conversation
Questions about Class 8 maths?
Share your child's board, textbook and what feels hard. We'll suggest a starting point and confirm the format and schedule before anything is booked.
- Tell us the learnerโs age or grade and goals
- Weโll suggest a suitable class or learning path
- Weโll confirm format, timing and fees with a parent or guardian
Play it, don't just read it
Try it now: Compound interest for 2 years
Eight quick questions with instant feedback. Your score is saved on this device and counts in the games and learning paths too.
Compound interest for 2 years (Grade 8): Finding the amount when interest is added at the end of each year. Open the practice page or print a worksheet.
Or play a game
- Fraction FluencyBuild fraction confidence with quick adaptive challenges, from equalโฆPlay
- Squares, Cubes & Roots TrainerLearn the squares from 1 to 30, the cubes, and square and cube roots,โฆPlay
- Times Table RaceAnswer 20 multiplication questions faster than the animal bots.Play