IMO Answer Key 2025-26 – SOF will soon release the answer key of IMO 2025 in December. IMO Level 1 answer keys 2025 (SET A) pdf link will be available on the official website, sofword.org. SOF IMO 2025 answer key contains answers to questions asked in SOF Maths Olympiad 2025. Students will be able to calculate their probable scores with IMO answer key 2025-26. The IMO exam answer key will be available in PDF format.
IMO Level 2 2025-26 will be held in February 2026. SOF IMO 2025 Level 1 held on November 12, 28 and will be held on December 12, 2025. We have provided the official IMO 2025-26 answer key below. Read further to know the details of International Mathematics Olympiad answer key 2025-26.
SOF IMO Answer Key 2025-26 Release Date
Students can check the IMO answer key date 2025 in the given table-
| Events | IMO 2025 Date |
| IMO 2025-26 Exam Date (1st Level) | November 12, 28 and December 12, 2025 |
| Release of IMO Answer Key 2025 (SET A) | December 2025 |
| IMO Result 2025-26 Date | January 2026 (Tentative) |
| IMO 2025 Exam Level 2 | February 2026 |
| Release of IMO Answer Key (Level 2) | February 2026 |
| IMO Result 2026 Date (Level 2) | March 2026 |
IMO Answer Key 2025-26 (Level 1)– Download Links
| Class-wise Links | IMO SET A Answer Key | IMO SET B Answer Key |
| IMO Answer Key for Class 1 | To Be Updated | To Be Updated |
| IMO Answer Key for Class 2 | To Be Updated | To Be Updated |
| IMO Answer Key for Class 3 | To Be Updated | To Be Updated |
| IMO Answer Key for Class 4 | To Be Updated | To Be Updated |
| IMO Answer Key for Class 5 | To Be Updated | To Be Updated |
| IMO Answer Key for Class 6 | To Be Updated | To Be Updated |
| IMO Answer Key for Class 7 | To Be Updated | To Be Updated |
| IMO Answer Key for Class 8 | To Be Updated | To Be Updated |
| IMO Answer Key for Class 9 | Download Now | To Be Updated |
| IMO Answer Key for Class 10 | To Be Updated | To Be Updated |
| IMO Answer Key for Class 11 | To Be Updated | To Be Updated |
| IMO Answer Key for Class 12 | To Be Updated | To Be Updated |
How to Download IMO Answer Key 2025-26?
IMO Level 1 Answer Key 2025 will be released in online mode on the official website of sofworld.org. Students can check the below steps to download the IMO Answer key 2025-26 (SET A, B, C)
- Go to the official web portal of the Science Olympiad Foundation – sofworld.org.
- In the homepage, click on the tab “Answer Key & Cut Off 2025-26”.
- Now, a new page containing IMO answer keys will appear on the screen.
- Under the SOF IMO Answer key 2025-26 (SET A, B, C)- click on the respective set to download the IMO Level 1 answer key 2025.
SOF IMO (2022-23) – 1ST LEVEL CUT-OFF TOP-5%
| CLASS | TOTAL MARKS | ACHIEVERS SECTION [M4] | MATHEMATICAL REASONING [M2] | EVERYDAY MATHEMATICS [M3] |
LOGICAL REASONING [M1]
|
| 3 | 35 | 8 | 10 | 8 | 9 |
| 4 | 33 | 6 | 8 | 10 | 9 |
| 5 | 45 | 9 | 16 | 7 | 13 |
| 6 | 47 | 9 | 16 | 10 | 12 |
| 7 | 42 | 9 | 14 | 6 | 13 |
| 8 | 45 | 12 | 14 | 7 | 12 |
| 9 | 49 | 15 | 17 | 6 | 11 |
| 10 | 51 | 12 | 19 | 8 | 12 |
| CLASS | TOTAL MARKS | ACHIEVERS SECTION [M4] | MATHEMATICAL REASONING [M2] | EVERYDAY MATHEMATICS [M3] |
LOGICAL REASONING [M1]
|
| 11 | 43 | 12 | 10 | 8 | 13 |
| 12 | 41 | 12 | 17 | 4 | 8 |
How To Calculate Scores With IMO Answer Key 2025?
To know how much you have secured in the IMO Level 1 exam 2025, students need to follow the given process to calculate the probable scores.
| Class | Score Calculating formulae |
| Class 1-4 | (Number of the right answer in the first 3 sections x 1) + (Number of right answers in the Achievers Section x 2) |
| Class 5- 12 | (Number of the right answer in the first 3 sections x 1) + (Number of right answers in the Achievers Section x 3) |
Other Relevant Links
| IMO Cut Off | IEO Cut off | NSO Cut off |
| IMO Result | IGKO Result | IEO Result |
| IMO Answer Key | NCO Answer Key | – |
Stay Connected With StudyGrades for Latest Updated on IMO Answer Key 2025!