This competition is open to all students enrolled in Primary 5 or Under-12 category (Children born after 1 January 2009). Topics will include Arithmetic, Number Theory, Combinatorics, Logic,
Geometry, Measurement and Algebra.

  • Preliminary Round
    Date : 1st August 2020
    Time : 3.00 pm – 5.00 pm
    Mode : Online

  • Competition Fee: THB 900
    Format of the Paper in the Preliminary Round
    Duration: 2 hours
    Consists of only the Vault Event comprising 28 questions.
    Marks are allotted as follows:
    Questions 1 to 10: 2 marks each
    Questions 11 to 20: 4 marks each
    Questions 21 to 28: 5 marks each
    Use of calculators is ALLOWED.
    Results of the Preliminary Round competition will be posted on the Phi Connections website ( after 5th August 2020.

  • Final Round
    International participants whose Prelim results are equivalent to the results of Singapore’s top 500 participants will be invited to the Final Round (International).
    Their results at the Final Round will also be tallied with the equivalent results of Singapore’s top 100 for the Gold award, next 150 for Silver award and the remaining finalists for Bronze award.
    Date : 29th August 2020
    Time : 3.00 pm – 5.30 pm
    Mode : Online

  • Competition Fee: THB 750

    No arrangements will be made for an alternative sitting. This is to ensure fairness and the integrity of the competition. We seek your understanding on this matter. Finalists who are absent from the Final Round will be awarded Certificate of Merit.

Information the competition online platform

  • Excelsoft Technologies will provide the competition online platform using the latest technologies of Auto-Lock-Down and Remote Webcam Proctoring. They are a provider of innovative technology-based solutions to educational institutes such as Temasek Polytechnic, SIT, Institute of Banking and Finance. (NUS and other polytechnics are also using similar technologies for their online examinations.)

  • There will also be a practice run on 29 July 2020 (Monday) at 9am - 4pm for your child to familiarize with the system.​

  • Please watch this space, more information will be given nearer the practice run date.

  • System Requirement - DOWNLOAD

Scope of the Mathlympics Competition

Topics will include arithmetic, number theory, combinatorics, logic, geometry, measurement, and algebra. 



  • Addition, subtraction, multiplication, division, manipulations of whole numbers, fractions, decimals, percentages and square root.
    If 48 is added to one-third of a number, the answer is triple the number. What is the number? 

Number Theory

  • Divisibility, prime numbers, exponential numbers (eg. 22, 23), number patterns and sequences.
    The greatest number of Mondays which can occur in 45 days is ___.  


  • Finding largest, smallest or optimal number of objects satisfying certain criteria, deciding when the criteria can be met.
    Vicky has four cubes of different colours – green, red, blue and yellow.
    The number of different ways they can be stacked one upon the other is ____.


  • Inferring relationships between objects given a set of clues.
    Mary, John and Pete have red, brown, and blonde hair, and are 13, 14, and 15 years old. Using the following clues determine the hair colour, and age of each child.
    1. The youngest has blonde hair.
    2. John is older than Pete.
    3. John does not have red hair and Pete does not have blonde hair.


  • Size, shape (angles, symmetry) and relative position of figures and properties of space.
    Zul has a wire 23 cm long. He wants to bend the wire to form triangles which have 3 different sizes. The number of triangles that can be formed with sides of whole number units is _____. 


  • Magnitude of some attribute of measures of an object relative to standard measurements. Includes Rate and Speed.
    A fence is 18 metres long. The fence posts are 3 metres apart.
    How many posts are there in the fence? 


  • Using symbols as "place holders" to denote constants and variables, and the rules governing mathematical expressions and equations involving these symbols.
    You are in a queue at the water-cooler. You are the x person from the front and the y person from the back. How many people are there in the queue? 


If you would like a copy of an exemplar Prelim Papers, please click on the links below:

Prelim Paper, Mathlympics: Questions (PDF, 259 KB) Past Papers [ 2018 ]


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