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Turn your hardest math notes into a challenging quiz

Upload a chapter, problem set or lecture slides and get multiple-choice, true/false or short-answer questions that test the hard parts, each with a worked explanation.

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Drop files here or browsePDF, DOCX, PPTX, text or photos of your notes · several files with Plus

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How to get a hard math quiz that matches your course

Most ready-made quizzes are too easy or cover the wrong topics. A better route is to build hard math quizzes from the exact material your instructor assigned, so the questions match the proofs, integrals and edge cases you will see on the exam.

Pull questions from the exact problem sets your course uses.
Mix multiple choice for speed with short answers for full working.
Read the explanation after each attempt, not before.
Retake missed questions after a day or two to check that they stuck.

Example hard calculus and probability quiz questions

What is the derivative of x^x for x > 0?x^x(ln x + 1). Write x^x as e^(x ln x) and apply the chain and product rules to the exponent.

Evaluate the integral of 1/(x^2 + 1) from 0 to infinity.pi/2. The antiderivative is arctan x, and arctan(infinity) minus arctan(0) equals pi/2.

How many distinct real roots does x^3 - 3x + 1 = 0 have?3. The discriminant -4p^3 - 27q^2 with p = -3 and q = 1 equals 81, which is positive, so there are three distinct real roots.

True or false: if det(A) = 0, then Ax = b has no solution for every vector b.False. A zero determinant means A is singular, so some right-hand sides have no solution, but any b in the column space still gives solutions.

Two fair dice are rolled and at least one shows a 3. What is the probability that the sum is 7?2/11. There are 11 outcomes with at least one 3, and only (3,4) and (4,3) sum to 7.

Generate the full set

Questions from your material

The quiz is built from your own PDF, slides, DOCX or photographed pages, so it covers the theorems and methods your course actually uses.

Explanations for every answer

Each question includes an explanation of why the correct answer works, so you can see where a wrong step happened.

Three question types

Choose multiple choice, true/false or open short-answer questions to mix recall with problems that need real working.

How it works

Upload your notes

Add a PDF, DOCX, PPTX, plain text file or photos of your pages. Text in images is read with text recognition.

Pick the difficulty and format

Select the question types and generate a quiz from the sections you want to drill.

Work through it and review

Answer the questions, read the explanations for anything you missed, and retake the questions that tripped you up.

Start with the problem sets and worked examples that felt difficult the first time. Generate a quiz from those pages, attempt each question before reading the explanation, and note which steps you rushed. Repeating the questions you missed is more useful than rereading the full chapter.

Free accounts get 3 generations per month and can study in the browser. Plus adds unlimited generations and PDF or DOCX export for printing or sharing with a study group. Pro adds a stronger AI model and QTI 2.1 and Moodle XML export for instructors who run their own course shells.

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Frequently asked questions

How hard are the questions DeckOwl generates?

Difficulty follows the material you upload, so a graduate-level problem set produces harder questions than an intro worksheet. You can also generate separate quizzes from the hardest sections of your notes.

Which math topics work best for a hard quiz?

Topics with clear definitions and worked methods work well, such as calculus, linear algebra, probability and statistics. Pages with long proofs may need to be split into smaller sections for better questions.

Can I export a hard math quiz to PDF or Word?

Yes, PDF and DOCX export are available on the Plus plan, which is $99.90/year or $9.99/month. Export is not included in the free plan, which lets you study in the browser.

Do I need a credit card to try it?

No, you can start on the free plan without a credit card and get 3 generations per month. Students with a school email get 40% off paid plans.

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