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Turn your own math notes into a hard math quiz with AI

Upload a chapter, lecture slides or handwritten notes and get tough practice questions that test the material your course actually covers, each with a worked explanation.

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Why the difficulty should come from your own course

Most hard math practice already sits in the textbook or lecture slides you own, which is why the hardest math quizzes are often the ones built from those pages. DeckOwl reads your files and writes questions at the level your material sets, each with an explanation of the solution.

  • Multiple-choice, true/false and short answer questions
  • Explanations that show the step where the reasoning breaks
  • Works from PDF, DOCX, PPTX, notes and photos of pages
  • Free plan includes 3 generations per month and browser study
Example hard math quiz questions
Is f(x) = |x| differentiable at x = 0?No. The left-hand derivative is -1 and the right-hand derivative is +1, so the two limits do not match at the corner.
Solve log base 2 of (x + 1) plus log base 2 of (x - 1) equals 3.x = 3. Combining the logs gives (x + 1)(x - 1) = 8, so x^2 = 9, and x = -3 is rejected because it makes x - 1 negative.
True or false: a continuous function on a closed interval [a, b] must reach a maximum value.True. The Extreme Value Theorem guarantees a maximum and minimum on a closed, bounded interval when the function is continuous.
How many distinct arrangements of the letters in MISSISSIPPI are there?34,650. Divide 11! by 4! times 4! times 2! because the repeated I, S and P letters give identical arrangements.
In a room of 23 people, is the chance that two share a birthday above 50%?Yes, about 50.7%. It is the complement of everyone having different birthdays, and that probability falls below one half at 23 people.
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Questions drawn from your material

Multiple-choice, true/false and short answer questions come from your own PDFs, slides or notes, so difficulty follows what you are actually studying.

Explanations for every answer

Each question includes an explanation that shows where the reasoning goes wrong, so a missed problem teaches you the method.

Study now, export later

The free plan lets you practice in the browser. Plus adds PDF, DOCX and CSV export, and Pro adds QTI 2.1 and Moodle XML export.

How it works

Upload your material

Add a PDF, DOCX, PPTX, text notes or a photo of a worked page from your textbook.

Choose the question types

Pick multiple-choice, true/false or open questions, depending on how you want to be tested.

Work through the quiz

Answer each question, read the explanation, then retry the ones you missed until the method holds.

Difficulty comes from the source rather than a generic question bank. If your notes cover implicit differentiation, the quiz tests implicit differentiation, and the explanation points to the chain rule step that is easy to skip.

Work through the missed questions first, then generate a fresh quiz from the same pages to check whether the method has stuck.

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Frequently asked questions

How hard should a math quiz be before I take it?

Aim for problems you can solve with effort but not at a glance. If most attempts stall, review the underlying method before retrying.

What is the best way to work through hard math problems?

Attempt each problem on paper before checking the answer, then rewrite the solution from memory. Returning to the same problem types across several days helps more than one long session.

Can I export a math quiz to Moodle or print it?

Yes, on paid plans. PDF and DOCX export come with Plus, and QTI 2.1 and Moodle XML export come with Pro.

Is DeckOwl free to try?

Yes, the free plan includes 3 generations per month and browser study, and no credit card is needed to start. Students with a school email get 40% off paid plans.

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