The competition of Mental Maths for class 9 is an excellent way to encourage students to think fast, improve their Mental ability, and develop their skills. It helps in making Mathematics more interesting and challenging for students, making them more engaged in the subject.
Class 9 is a crucial stage for students' academic foundation. During initial grades, most students begin to fantasize about their future and plan to take competitive examinations. To ease students' difficulty, we took the best initiative by providing the information about the competition for Mental Maths for class 9.
CREST Olympiads is an organization that offers a range of competitive exams for school students. One of their exams is the Mental Maths competition for class 9. This Mental Maths competition attracts students from more than 60 countries and 6000+ schools to evaluate their aptitude, logical thinking, and ability to perform mathematical operations rapidly without the use of a calculator, among other things. The exam is CREST Mental Maths Olympiad (CMMO).
Other Important Information:
| Mode of Examination | Online |
| Mode of Registration | Individual and through schools |
| Exam Duration | 1 hour (60 minutes) |
| Type of Questions | Multiple Choice Questions (MCQs) |
| Levels of Examination | 2 Levels |
| Marking Scheme | Mental Maths Olympiad marking scheme |
>> Join CREST Olympiads WhatsApp Channel for latest updates.
a. Any recognised board qualifies a Class 9 student for the Mental Maths Olympiad for class 9 (CBSE, ICSE, IB and State Boards included). Entrants come from more than 60 countries and over 6000 schools.
b. Enter through your school or register by yourself.
c. Online and watched over by webcam, the Class 9 paper is one you sit at home by yourself. It needs a desktop, a laptop or a tablet larger than 11.5 inches rather than a mobile (Windows 8 or later on a Windows device; a Mac or an iPad is fine too), an internet link that stays up for the whole hour and the latest version of Google Chrome (Edge or Firefox also work, but not Safari).
d. Any one of these can cost you the attempt: a calculator, a phone, someone sitting with you, or a face that drifts out of the picture.
e. Level 2 is decided by Level 1. Class 9 candidates ranked in the top 66.67% go through, together with the top three school-registered names of every school that has more than 25 in the class.
1. Polynomials and probability, fast. The Class 9 prep guide brings in polynomials, quadratic equations, statistics and probability, all to be handled at Mental Maths speed.
2. A strong class for rank holders. Mental Maths International Rank 1 in Class 9 (2024-25) is on a Hall of Fame profile that also shows Rank 3 in Class 8 and Rank 1 in Class 10.
3. Logic that grows. Taking this Olympiad made the writer's logical and critical thinking flourish, a Class 9 testimonial says.
4. A clear format. The question pattern and the exam procedure both win approval in another Class 9 review.
Following are the steps to register for class 9 CREST Mental Maths Olympiad (CMMO) -
Step 1: Visit the Olympiad registration link.
Step 2: The registration form opens up.
Step 3: Fill in all the registration form details.
Step 4: Select the subject(s).
Step 5: Read the instructions carefully.
Step 6: Proceed to make the payment.
Step 7: Registration is complete.
Note: Schools looking to conduct the CREST Mental Maths Olympiad (CMMO) for class 9 can email us at info@crestolympiads.com or call/WhatsApp on +91-98182-94134.
Seven topics form the Mental Maths Olympiad syllabus for class 9: Number System, Algebra, Comparing Quantities, Geometry, Mensuration, Playing with Numbers and Data Handling.
Two Class 8 topics, Square and Square Roots and Cube and Cube Roots, are no longer listed, and Data Handling and Symmetry is now simply Data Handling. This seven-topic list then stays the same up to Class 12.
Within the topics the Class 9 prep guide covers simplification, polynomials and quadratic equations, boats and streams, heights and distance, areas related to circles, number and alphanumeric series, factorisation, statistics, probability and data interpretation.
The paper sets 100 MCQs in 60 minutes with 120 marks available: 80 Basique questions at 1 mark and 20 Avance questions at 2. Level 2 follows suit and no marks are ever subtracted for errors.
The Class 9 Mental Maths topic list has the full breakdown.
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Exam Dates |
Practice Test 2 Dates: 23rd and 24th June 2026 Level 1 Dates: 9th and 14th July 2026 Level 2 Dates: 7th and 8th August 2026 |
| Fee | INR 275 (India-based candidates)/ USD 15 (International candidates) |
Class 9 Mental Maths rewards pattern spotting. Many questions have a quick route once you see the structure: a difference of squares, a discount applied twice, or a speed upstream and downstream.
Build a one-page formula sheet for Comparing Quantities (interest, profit and loss, time and work, boats and streams) and test yourself on it every morning.
The class 9 Mental Maths sample papers include a boat covering 48 km downstream in 3 hours and 40 km upstream in 4 hours, factorising x^4 - 2x^2y^2 + y^4, and a double discount of 30% and 20% on a marked price of $3000. If you can do these without writing you are close to the 36-seconds-a-question pace of the exam.
Sit the free trial once before the real paper. A CREST workbook for Class 9 Mental Maths is available from the Olympiad books page as well. Free Class 9 resources:
Free practice for Class 9 Mental Maths Olympiad
Mental Maths Olympiad for other classes
Other olympiads for Class 9
Students need to regularly check the website to get updates on the availability of answer key.
Answer key is made available on the answer key dates shown on the exam schedule. Participants appearing for the exam are only able to view the answer key.
Cut-off for class 9 CREST Mental Maths Olympiad (CMMO) can be checked by candidates online on the website.
Class 9 Level 1 results for the Mental Maths Olympiad reach your dashboard within 10 days of the last Level 1 answer key date, and Level 2 results within a month of the last Level 2 answer key date; use the login you registered with.
Level 2 ranks are decided by marks. Where marks are equal CREST looks at the Level 1 score, then at the time taken, and finally at the date of birth, placing the younger student higher.
Medals go to the top 15% of students, Merit Certificates to the top 25% and Honourable Mention certificates to the top 60%, and trophies go to the top three internationally. See Awards & Recognition for the full criteria.
Participants in the CREST Mental Maths Olympiad who clear the cutoff are honored with Trophies, Medals, Merit Certificates, etc.
The awards are designed to encourage students to improve their mathematical skills and to reward those who excel in the competition.
The awards differ according to the student's achieved rank. Check out the comprehensive details on CREST Olympiad awards.
1. What is the format of the competition for Mental Maths for class 9?
Answer: The format of the competition may vary, but it usually involves solving arithmetic problems such as addition, subtraction, multiplication, division and fractions. Some competitions also include word problems.
2. Is there any preparation required for Mental Maths for class 9?
Answer: Yes, participants are encouraged to practice Mental arithmetic regularly to improve their skills and speed. They can also use online resources and practice books to prepare for the competition.