Đề thi FMO mùa hè 2020 Khối 3 (Kèm đáp án)

 FERMAT Mathematical Olympiad 
 Summer 2020 
 Sample Test 
 Final Round 
 Primary 3 
 Time allowed: 90 minutes 
Instructions to Contestants: 
 1. Each contestant should have ONE Question Book which CANNOT be taken away. 
 2. There are 3 sections in this exam. Section A consists of 10 questions. Each carries 4 
 marks. Section B consists of 10 questions. Each carries 5 marks. Section C consists 
 of 5 questions. Each carries 7 marks. The total number of questions is 25. Total score 
 is 125 marks. No points are deducted for incorrect answers or empty answers. 
 3. NO calculators can be used during the contest. All figures in the paper are not 
 necessarily drawn to scale. 
 4. This Question Book will be collected at the end of the contest. 
 THIS Question Book CANNOT BE TAKEN AWAY. 
 DO NOT turn over this Question Book without approval of the examiner. 
 Otherwise, contestant may be DISQUALIFIED. 
KỲ THI OLYMPIC TOÁN HỌC HÈ - FMO 2020 
Đơn vị tổ chức: Công ty CP Giáo dục FERMAT 
Email: FMO2020.fe@gmail.com Facebook: https://www.facebook.com/FMathO2020 
6) According to the pattern, fill in the next number. 
 1、3、6、8、11、13、16、18、_________、 
7) There are 4 main courses in a restaurant with a free drink. There are 7 choices for 
 drinks. How many combinations are there? 
8) Teacher has 20 candies. He will give students 1, 2 or 3 candies. How many students 
 can he give at least? 
9) Now a team of Boy Scout is queuing up. Ming is inside the queue. There are 5 people 
 on his left hand side and there are 9 people on his right hand side. How many people 
 are there? 
10) Find the value of A under the following puzzle. 
 A A A A A BA 
 Section B: 11th to 20th Question (Each carries 5 marks) 
11) Now there are 6 different colours of balloons. If buying 2 of them, how many 
 combinations are there? 
12) Find the value of (12 3 4)(12 3 4 5 6 7 8)(12 33 21) . 
13) How many cubes are needed to form the following figure? 
 Question 13 
14) It is known that the sun raises from the east. During sunrise time, Keung’s shadow is 
 on his left hand side. What direction is he facing? 
15) If Kuen gives half of her candies to Lam, Lam’s will be 7 candies more than Kuen’s. 
 The total number of candies is 19. How many candies does Kuen have originally? 
KỲ THI OLYMPIC TOÁN HỌC HÈ - FMO 2020 
Đơn vị tổ chức: Công ty CP Giáo dục FERMAT 
Email: FMO2020.fe@gmail.com Facebook: https://www.facebook.com/FMathO2020 
 Question 22 
23) According to the following pattern, what is the sum of 30th column between the upper 
and the lower number? 
 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 
 3 6 9 2 4 6 3 6 9 2 4 6 3 6 9 
24) A chessboard has 8 row, each row has 8 square. The number of black squares is equal 
 to the number of white squares. How many black squares are there? 
25) Which equation’s result is the smallest? (Use English Alphabet letters to represent 
your answer) 
 A) 1 99 
 B) 2 98 
 C) 3 97 
 D) 4 96 
 ~ End of Paper ~ 
KỲ THI OLYMPIC TOÁN HỌC HÈ - FMO 2020 
Đơn vị tổ chức: Công ty CP Giáo dục FERMAT 
Email: FMO2020.fe@gmail.com Facebook: https://www.facebook.com/FMathO2020