Write it by hand. letsMath shows you exactly where it went wrong.
Start freeFind x. Give your answer to 3 significant figures.
35°10 cmxsin 35° = x10x = 10 × sin 35°x = 10 × 0.819x = 8.19 cmthat's cos 35°!x = 10 × 0.574 = 5.74 cmSolve 2x² + 5x − 3 = 0 by factorising.
2x² + 5x − 3 = 0(2x )(x ) = 0 ??× to make −6, + to make 56 and −12x² + 6x − x − 3 = 02x(x + 3) − 1(x + 3) = 0(2x − 1)(x + 3) = 0x = ½ or x = −3Sketch y = 2 sin x + 1 for 0° ≤ x ≤ 360°.
sin x = −½ ⇒ x = 210°, 330°7The curve C has equation y = x³ − 6x² + 9x + 2
(a) Find dy/dx.[2 marks]
(b) Find the coordinates of the stationary points of C.[4 marks]
dy/dx = 3x² − 12x + 93x² − 12x + 9 = 0x² − 4x + 3 = 0(x − 1)(x − 3) = 0 ⇒ x = 1, x = 3x = 1: y = 1 − 6 + 9 + 2 = 6x = 3: y = 27 − 54 + 27 + 2 = 4(1, 6) and (3, 4)M1 A1M1 A1A1A0recheck: this is 2Drop in a screenshot of the question, or handwrite it straight onto the canvas. Every time you ask, the tutor looks at your whole board, handwriting and all, so it always knows exactly where you're up to.
Watch it check some workCircles, ticks, arrows and whole diagrams, drawn on like a pen right next to your working. Tap a mark in the chat and the board jumps straight to it.
See what it can drawDrop in a PDF and work straight on the page. The tutor gives you the method marks you've earned and shows you exactly where the rest went.
See pricingOther apps make you type maths their way. letsMath gives you a pen, a highlighter, shapes and a proper equation editor, so you can work however you think.
Ticks, crosses, circles and notes land right on your working, drawn on like a pen. Tap a mark in the chat and the board jumps straight to it.
Ask for a triangle, a graph or a bearing and the tutor draws it from the maths, so every length, angle and curve is where it should be.
Drop in a PDF and work straight on the page. The tutor marks it the way an examiner would, method marks and all, and shows you where the missing marks went.
Tap Check my work, Give me a hint or I'm stuck. The tutor nudges you one step at a time, so the method is still there on exam day.
No problem. Start with what you know: how far does the line go up from A to B?
Exactly. So the gradient is up ÷ across. What do you get?
Solve 2sin²x + 3cos x = 3 for 0° ≤ x < 360°.
One tap and the tutor scans everything on your board, then tells you what's right, where it slipped and why, step by step. It streams in as it writes, so you're never left waiting.
Try it free7 Solve 3(x − 4) = 2x + 5
8 Solve 5(2x + 1) = 3x − 9
Take a photo of a textbook or worksheet, or drop or paste one in, and it lands right on your board. Work underneath it and the tutor reads both.
Try it freeSay "add the height" or "label the angles" and the tutor updates the diagram it already drew, in the same spot, instead of starting a new one.
Try it freeIt does everything a chatbot can. Then it works through the maths with you, on your page.
| Chatbot | Private tutor | letsMath | |
|---|---|---|---|
| Your working | Can't see it. You upload it and explain the problem, exam board and syllabus every time | Only sees it in your booked hour | The AI tutor sees your canvas, all the time |
| Feedback | A paragraph you have to match back to your working line by line | Mistakes wait until your next session | Ticks, crosses and notes on the exact line, as you work |
| Past papers | Work on paper, then type or upload answers to get feedback | Marking either uses up your paid hour or waits until next session | Write straight on the PDF and get detailed marking on the paper itself |
| Diagrams | Generated in the chat, so you scroll back up to find them while you work | Sketched on paper, gone when the session ends | Drawn on your board beside your working, and edited in place when you ask |
| Answers | Often hands you the full solution, so you copy instead of learn | Depends on the tutor, and only while they're there | Teaches you when you're stuck, or shows a fully laid-out solution if you want one |
| Availability | Any time | Limited slots, booked in advance | Any time |
| Cost | About $25/month for a paid plan, and it still can't see your page | About £25-£55 an hour | From about £10/month, with a generous free tier and a free week of full access |
| Start free 7 days free. No card needed. | |||
Everything students and parents ask us before they start.
No. The tutor starts with a hint and only goes further when the student asks. Its job is to find the step that went wrong and help them fix it, so the method is still there in the exam.
GCSE and A-level maths: algebra, trigonometry, graphs, calculus, vectors, probability and the rest. If you can write it on paper, you can write it on the board.
No. It works in the browser with a mouse, a trackpad or a finger. A tablet and stylus feels most like paper, so that's what we'd recommend if you have one.
You don't type maths. You write your working the way you would on paper, and the tutor reads your handwriting, then circles, ticks and draws on the board itself. It answers with hints rather than a finished solution.
Yes. Drop a PDF onto the board and work straight on the page. The tutor marks it the way an examiner would, method marks and all.
The question you're on always finishes, even if it takes you slightly over. You'll get a warning at 80%, and the allowance resets every week.
Any time, from Settings → Billing. Your plan carries on until the end of the month or year you've paid for, and you won't be charged again. If it isn't for you, we'll refund you in full within 14 days of paying.