CREST Mental Maths Olympiad for Class 10 assesses students' quick calculation capabilities through internationally recognized competitions. Trusted by 6000+ schools across 60+ countries, we provide platforms where students compete globally while developing mathematical prowess essential for board examinations and beyond. To specifically engage school students, CREST Olympiads (Most Innovative Olympiad Exams) established the competition of Mental Maths for class 10 students.
This CREST Mental Maths Olympiad (CMMO) competition attracts students from worldwide to test their skills. The exam is designed to test the students' ability to perform quick arithmetic calculations.
As a result, CREST Mental Maths Olympiad (CMMO) is an excellent opportunity for students to compete against other students from around the world and showcase their talents.
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. No board or country is excluded from the Mental Maths Olympiad for class 10; register through school, or individually where the school is not involved.
b. Unassisted and at home is how Class 10 sits the exam. A desktop, a laptop or a tablet larger than 11.5 inches will do if it has a webcam; Windows 8 is the oldest Windows version that works, and a Mac or an iPad is also fine. Phones are not allowed. Open the exam in an up-to-date Google Chrome, or else Edge or Firefox (Safari will not do), over a stable internet connection.
c. Keep the camera on your face throughout and keep calculators and phones away from the desk; CREST disqualifies students found using unfair means.
d. For Level 2, Class 10 needs a place in the top 66.67% of Level 1 candidates in the class, or a top 3 finish among your school's own school-registered entrants when more than 25 from the class appear.
e. The fee of Rs. 275 (USD 15 outside India) also pays for two online practice tests that you can skip if you wish.
1. Mental speed on harder ideas. CREST's stated aim for this Olympiad is to make students efficient at mental calculations; in Class 10 that means polynomials, quadratic equations and data interpretation at 36 seconds a question.
2. Rank 1 in Class 10 is on record. The 2024-25 Class 10 Mental Maths International Rank 1 has a Hall of Fame profile you can read.
3. Realising what you can do. In a Class 10 review, the writer credits CREST with showing their potential through concepts, and urges others to try it.
4. A workbook to the end. CREST Mental Maths workbooks run from Grade 1 to Grade 10 according to the Olympiad books page, so this class still has one.
Following are the steps to register for class 10 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 10 can email us at info@crestolympiads.com or call/WhatsApp on +91-98182-94134.
In Class 10 the topic list does not move. As in Class 9 it is:
Nothing else is on the Mental Maths Olympiad syllabus for class 10. Two topics hold most of the sub-topics in the Class 10 prep guide. Comparing Quantities takes in time and distance, simple and compound interest, profit and loss, problems on ages, time and work, boats and streams, average and percentage, partnership, and ratio and proportion. Mensuration covers the surface area and volume of cubes, cuboids, cylinders and cones, heights and distance, and the areas of quadrilaterals, triangles and circles.
Level 1 gives you 60 minutes for its 100 questions. Where the marks come from: the Basique section's 80 one-mark questions make up 80 of the 120 marks, and the Avance section's 20 two-mark questions the other 40. Level 2 is again a 100-question paper of 60 minutes, and nobody loses marks for a wrong choice.
Open the Class 10 study guide for sub-topics, or browse the CREST Mental Maths syllabus class by class.
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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) |
Keep Mental Maths practice short and regular in Class 10: twenty minutes a day keeps your speed up without crowding out schoolwork.
Focus on the items that reward a trick. Evaluate polynomials by substituting carefully with signs, find still-water speed as the average of the upstream and downstream speeds, and learn the circle formulas with pi as 22/7.
The class 10 Mental Maths sample papers test exactly this: the value of -4x^2 + 7x - 5 at x = -3, a boat at 28 km/h upstream and 44 km/h downstream, and the area of a circle whose circumference is 176 m.
Sit the free trial in one go, and add the Class 10 workbook from the Olympiad books page. CREST's free Class 10 resources:
Free practice for Class 10 Mental Maths Olympiad
Mental Maths Olympiad for other classes
Other olympiads for Class 10
On the official website, students can view the answer key dates for the CREST Mental Maths Olympiad (CMMO) for class 10. Answer keys are made available on the answer key dates shown on the exam schedule. Only exam participants are allowed to review the answer key.
Cut-off for class 10 CREST Mental Maths Olympiad (CMMO) can be checked by candidates online on the website.
Answer keys for the class 10 Mental Maths Olympiad come out on the answer key dates shown on the exam schedule page. Level 1 results follow 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, and both open on your dashboard with your registered login.
In Class 10 it is the Level 2 marks that count. Finishing first, second or third in the world brings the Achiever's Trophy, and medals go to the top 15% of students, Merit Certificates to the top 25% and Honourable Mention certificates to the top 60%. See Awards & Recognition for the full criteria.
Students who clear the required score in the CREST Mental Maths Olympiad (CMMO) will receive awards such as certificates of merit, trophies and medals. The awards differ according to the student's obtained rank.
For detailed information, check the Awards.
1. Why is Mental Maths for class 10 important?
Answer: Mental Maths for class 10 helps to develop quick thinking and problem-solving skills, improve memory and increase speed and accuracy in mathematical calculations. It also helps to enhance overall academic performance.
2. What are the best techniques of Mental Maths for class 10 students?
Answer: Class 10 students can benefit from techniques such as mental arithmetic, estimation and visualization.
3. How can Mental Maths for class 10 help in solving complex mathematical problems?
Answer: It helps in solving complex mathematical problems by allowing students to quickly simplify and manipulate numbers, reducing the time and effort required to solve a problem.