Hong Kong International Mathematical Olympiad (HKIMO) – Past Paper

HKIMO, is named as Hong Kong International Mathematical Olympiad, is annual international math competition in region of Asia. The objective to develop HKIMO is to promote Mathematical Olympiad all over the world. The examination paper consists of 5 main topics: Logical Thinking, Arithmetic (Kindergarten / Primary Section) / Algebra (Secondary Section), Number Theory, Geometry & Combinatorics.

Logical Thinking boosts your brain to use reasoning consistently based on the structure and relationship between facts provided. Usually this section costs us a longer time to solve them out.

Arithmetic is a branch of mathematics that consists of the study of numbers and all of their properties. One who apply the properties will gain advantage of time to solve the problems.

Algebra is the advanced one! It plays around symbols to represent unknown numbers. You have to manipulate the form by applying what we call as algebra properties. Once you done that, then you can find the value of the unknown. That’s a classic problem in algebra, you know!

Number Theory devoted himself to focus on integer. The way of how integers works to play his role. You will also learn that natural number, prime number, odd/even number, number division, multiples and factors act marvelously in Number Theory.

Geometry concerns with questions of shape, size, relative position of the figures, and the properties of space. 

Combinatorics force us to find a tricky and faster way in arranging the position of objects given, while usually restricted by some conditions. Counting manually may result the solution, but wasting much time.

To prepare for the sake of competition, here we provide the past paper of HKIMO. By studying them, we hope that you have your own image of how to solve the problems given later.

You can get much further information of HKIMO in the website.

HKIMO 2018 – Heat Round Question Paper
Kindergarten Group   PDF | Word 
Primary 1                    PDF | Word
Primary 2                    PDF Word
Primary 3                    PDF | Word
Primary 4                    PDF | Word
Primary 5                    PDF | Word
Primary 6                    PDF | Word
Secondary 1                PDF Word
Secondary 2                PDF | Word

Secondary 3                PDF | Word
Senior Secondary        PDF | Word
Note: There is a typo in Primary 4 Question Paper (PDF). It should be rectangle instead of triangle in Number 17. I have revised it in Word however.

HKIMO 2019 – Heat Round Question Paper
Primary 1                    PDF | Word
Primary 2                    PDF Word
Primary 3                    PDF | Word
Primary 4                    PDF | Word
Primary 5                    PDF | Word
Secondary 1                PDF Word
Note: There is a slight error of sign in Secondary 1 Question Paper (PDF). It should be x2 – 2x – 63 instead of x2 – 2x + 63 in Number 10 (it can’t be factorized in original problem). I have revised it in Word however.

For the file in Docx. format (retyped style), you are feel free to edit them as you own themselves. So, enjoy!

You can also download the past paper of TIMO here.

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