Discrete Mathematics Test
Tests discrete mathematics — logic and proofs, sets, relations and functions, counting and probability, number theory and induction, and graphs, trees and recurrences used throughout computer science. Pass to earn Discrete Mathematics SOA-DISC.
- Advanced difficulty.Assumes years in the role or deep specialist knowledge.
- 25 scenario questions
- 25 minutes, timed
- 70% to pass · 90% for distinction
- Free no sign-up needed
- LinkedIn-ready · add it to your profile in one clickSee how ↓
What is the Discrete Mathematics Test?
The Discrete Mathematics Test is a free advanced-level, 25-minute skill test from Science of Apps. It tests discrete mathematics — logic and proofs, sets, relations and functions, counting and probability, number theory and induction, and graphs, trees and recurrences used throughout computer science. Score 70% or more on its 25 questions to earn a verifiable Discrete Mathematics certificate (SOA-DISC). Every question is based on published standards and research — including Mathematics for Computer Science (6.042J) (MIT OpenCourseWare), 6.041 Probabilistic Systems Analysis (MIT OpenCourseWare) — and each answer is explained with its source.
Built for your job title
Computer science student, Software engineer, Mathematics student, Data scientist and Competitive programmer — and anyone who wants quick, verifiable proof of Discrete Mathematics skills for a CV or LinkedIn.
- Computer science student
- Software engineer
- Mathematics student
- Data scientist
- Competitive programmer
What the test covers
Five skill areas with 5 questions each, drawn from a bank of 10 per area, so a retake brings questions you haven't seen.
- 01
Logic and Proofs
20%- Propositional logic
- Quantifiers
- Proof techniques
- 02
Sets, Relations and Functions
20%- Set operations
- Relations
- Functions
- 03
Counting and Probability
20%- Permutations and combinations
- Pigeonhole principle
- Discrete probability
- 04
Number Theory, Induction and Graphs
20%- Modular arithmetic
- Induction and recurrences
- Graphs and trees
- 05
Boolean Algebra, Growth and Algorithms
20%- Boolean algebra
- Asymptotic growth
- Recurrences and algorithm analysis
Based on published standards
The questions are original scenarios, and each one names the public standard, official guide or research it draws on — shown under the question while you answer, and linked in your review. These are the sources behind this test:
Try a sample question
The contrapositive of "If p, then q" is
- "If q, then p"
- "If not p, then not q"
- "If not q, then not p"
- "p and not q"
Show the answer
C. "If not q, then not p" — A statement and its contrapositive are logically equivalent. The real test has 25 questions like this.
How the test works
25 minutes, 25 questions
One question per screen, with a progress bar and a countdown. Your progress is saved on this device if you need to pause.
Graded on our server
Answers reach the page only after you submit, so the certificate can only be earned by passing.
Every answer explained
Pass or not, you see every question with the right answer, why, and the source behind it. Pass mark 70%, distinction 90%.
Your certificate
Founder-signed, with a QR code and credential ID. Download PDF or PNG, add to LinkedIn, and it's emailed to you.
What you earn

Pass, then add it to LinkedIn in one click
No typing. The Add to LinkedIn button opens your profile’s Licenses & certifications form already filled in: the certificate name, Science of Apps as the issuer, the issue date, your credential ID and a link recruiters can use to verify it.
- 1Take the 25-minute test
- 2Score 70% or more
- 3Click Add to LinkedIn

Discrete Mathematics
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Frequently asked questions
What is the Discrete Mathematics Test?
The Discrete Mathematics Test is a free advanced-level, 25-minute skill test from Science of Apps. It tests discrete mathematics — logic and proofs, sets, relations and functions, counting and probability, number theory and induction, and graphs, trees and recurrences used throughout computer science. Score 70% or more on its 25 questions to earn a verifiable Discrete Mathematics certificate (SOA-DISC). Every question is based on published standards and research — including Mathematics for Computer Science (6.042J) (MIT OpenCourseWare), 6.041 Probabilistic Systems Analysis (MIT OpenCourseWare) — and each answer is explained with its source.
How do I take the Discrete Mathematics Test for free?
Read the five skill areas on this page, then take the 25-minute test online — no fee, course or sign-up. You see every answer explained when you finish. Score 70% or more and you get a Discrete Mathematics certificate straight away, on screen, as a PDF and by email, with a credential ID anyone can verify.
Are the Discrete Mathematics Test questions based on real standards?
Yes. The questions are original scenarios written by Science of Apps, and each one is based on a public source you can read: Mathematics for Computer Science (6.042J) (MIT OpenCourseWare); 6.041 Probabilistic Systems Analysis (MIT OpenCourseWare). The source is shown under each question and linked in the answer review. Science of Apps doesn't copy questions from other tests.
What does the Discrete Mathematics Test cover?
Five skill areas with five questions each, drawn from a bank of 10 per area so a retake brings new questions: Logic and Proofs (Propositional logic, Quantifiers and Proof techniques); Sets, Relations and Functions (Set operations, Relations and Functions); Counting and Probability (Permutations and combinations, Pigeonhole principle and Discrete probability); Number Theory, Induction and Graphs (Modular arithmetic, Induction and recurrences and Graphs and trees); Boolean Algebra, Growth and Algorithms (Boolean algebra, Asymptotic growth and Recurrences and algorithm analysis). Every question is an original scenario based on a published standard, official documentation or research, named under the question.
Who should take the Discrete Mathematics Test?
Computer science student, Software engineer, Mathematics student, Data scientist and Competitive programmer. It suits anyone who wants a quick, verifiable way to show Discrete Mathematics skills, from students and career switchers to experienced professionals.
Can I use this for discrete math quiz, discrete math practice or combinatorics quiz?
Yes. The Discrete Mathematics Test is free and covers all of these: 25 scenario questions in 25 minutes, each answer explained with the source it comes from, so it works as interview and exam practice. It isn't a full course, so use the areas you miss as your study list. Scoring 70% or more earns a verifiable certificate.
Can I take the Discrete Mathematics Test from any country?
Yes. The test is online, in English and free everywhere — people take it from India, the US, the UK, Europe, Africa, Latin America and Asia-Pacific. Your certificate is dated with your own local date and can be verified from anywhere at scienceofapps.com/certification/verify/.
How long is the Discrete Mathematics Test?
25 questions — 5 from each of 5 skill areas — with a 25-minute limit. You need 70% (18 of 25) to pass and 90% for distinction.
How hard is the Discrete Mathematics Test?
We rate it Advanced: assumes years in the role or deep specialist knowledge. It has 25 scenario questions — 5 from each of 5 skill areas — and a 25-minute limit. You need 70% (18 of 25) to pass and 90% for distinction.
How much do Science of Apps certifications cost?
Nothing. There is no fee to take a test, to receive the certificate, to have it emailed or to verify it, and no sign-up.
How are the tests graded?
On our server, not in your browser. The answers never reach the page until you submit, so a certificate can only be earned by passing. Each certificate gets a unique credential ID stored by Science of Apps.
What happens if I don't pass?
You see your score for each area and every question with the correct answer and why, with the published source behind it. You can retake after 30 minutes, and the retake draws questions you haven't seen yet.
Do the certificates expire?
No. Every certificate is dated, so it always shows when you passed. Retake a test any time for a newer date or a higher score.
Can I add the certificate to LinkedIn?
Yes. After you pass, Add to LinkedIn opens the Licenses & certifications form with the certificate name, Science of Apps as the issuer, the issue date, your credential ID and the verification link filled in. You can also download it as a PDF or PNG, and it's emailed to you as a PDF.
How can an employer verify my certificate?
Every certificate has a credential ID and a QR code. Scanning it, or entering the ID at scienceofapps.com/certification/verify/, shows the holder's name, the certification, the score and the issue date from our records.
Are these accredited qualifications?
No. They are Science of Apps' own assessments of applied skill. They aren't issued by a university or standards body, and they work best alongside a portfolio that shows the skills in real work.
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