84%average score with the Sprint method · 102 students
Cambridge Mathematics exam practice
Write your working. Get it marked like the real exam.
Solve each question by hand, on the screen or on paper. Every step gets marked the way the Cambridge mark scheme marks it, with method and accuracy marks, so you see exactly where the marks come from and where they slip away.
Solve 5(x − 3) = 2x + 9
Watch out: multiply the 5 by both terms in the bracket, 5 × (−3) = −15.
Courses
What are you studying?
Coming soon
New course
This course is being written now, in the same format: units, mock tests, a learning objectives tracker and AI marking of your working. Your account will open it as soon as it goes live.
What's inside
The whole course in sprints
Every unit follows the same path: Learn, Practice, Challenge, then exam-style questions. A mock test closes each sprint.
Timed mocks and full exams
Paper 2 without a calculator and Paper 4 with one, under exam timing. Your result comes with a grade estimate from the latest published grade thresholds.
Point here to preview142 / 200
| Topic | P2 | P4 |
|---|---|---|
| Number | 14/16 | 12/14 |
| Algebra | 11/18 | 17/20 |
| Geometry | 4/10 | 8/14 |
12 marks to A* · revisit Geometry first
Target practice
Choose any learning objective, such as E2.5 Equations, and practise only that, at Practice, Challenge or exam-style level.
Point here to previewSolve 3(2x + 1) = 4x − 7
A tracker that tells you what to do next
Each objective moves through four steps, and the tracker points to the next question worth your time.
Printable worksheets
Build a PDF for any objective: pick the questions, set the working space, and add an answer table or full solutions.
Point here to previewHow it works
Three steps, one question at a time
Pick a question
Follow the course unit by unit, go straight to one learning objective, or sit a full timed exam.
Show your working
Write on the built-in whiteboard with a pen, line and compass tools, or solve on paper and upload a photo.
See every mark
Ticks and crosses beside each step, the mark it earns, a short note on what went wrong, and the full worked solution.
Pricing
Pick a plan by how much marking you need
Every plan opens the whole course. Plans differ only in how many AI checks you get each month. One AI check marks one question, step by step. Launch offer: the Starter plan is free for your first month.
Starter
Then $7 a month
- ✓The full course: 8 sprints, 32 units, 1,100+ questions
- ✓Worked solutions for every question
- ✓8 mock tests and 2 full exams with grade estimates
- ✓Target practice, progress tracker, printable PDFs
Regular
7.5¢ per check
- ✓Everything in Starter
- ✓Enough to mark a mock test and its redo every week
Exam season
6.25¢ per check, our lowest price
- ✓Everything in Starter
- ✓Top-ups at a fixed 7¢ per check, any amount from 50
- ✓For the final weeks: full exams marked paper by paper
Plan checks last 2 months. Checks you don't use this month move into next month, then expire at the end of it.
Run out mid-month? Top up
Top-ups are one-off payments on top of any plan. Choose any number of checks from 50 up. The more you buy, the lower the price per check. Top-up checks never expire: they stay on your account through every renewal, and your plan checks are used first.
Choose your own amount
Drag the slider or type any number of checks. On Exam season, every top-up is 7¢ per check.
| Checks | 50–249 | 250–499 | 500+ |
|---|---|---|---|
| Per check | 9¢ | 8¢ | 7¢ |
Prices in US dollars. Change or cancel your plan any time. Writing new practice questions with AI also uses one check per set.
About the site
What is Show My Working?
Show My Working is an online practice platform for Cambridge mathematics exams. Each course is split into short sprints of units and mock tests, mapped to the syllabus learning objectives.
You write your working the way you would in the exam, and AI marks every step against the mark scheme rules: method marks, accuracy marks and the notes an examiner would write. A tracker then shows which objectives are secure and which question to try next.
Questions
Frequently asked
Which courses are available?
Cambridge IGCSE Mathematics 0580, Extended tier, for examination from 2025 to 2027, covering all nine topics from Number to Statistics. More Cambridge courses are on the way and will appear in the course list as they open.
How does the AI marking work?
You write your working on the whiteboard or upload a photo of your paper. The AI reads each step and marks it against the worked solution and the mark scheme rules, with method marks for the right process and accuracy marks for the right answer. You always see the full solution too, so you can check every mark yourself.
What happens after the free month?
The Starter plan becomes $7 a month with 30 AI checks each month. You can switch to Regular or Exam season, add a top-up, or cancel any time before the offer ends and pay nothing.
Do unused checks expire?
Checks that come with your plan last 2 months: whatever you don't use this month moves into next month, then expires. Checks you buy as a top-up never expire and stay on your account through every renewal. The site always uses your plan checks first, the ones closest to expiring.
Can I use it on my phone?
Yes. The site works in any modern browser on a phone, tablet or laptop. A tablet with a stylus feels closest to writing on paper.
Is this an official Cambridge product?
No. Show My Working is an independent study site. The questions are written in the style of the Cambridge papers to help you prepare.
Your next mark is in your working.
Launch offer: the Starter plan free for your first month.