Đề thi FMO vòng chung kết quốc tế 2022 Khối 3 (Kèm đáp án)

 FMO – Grade 3 
 I. Warm-up (3 points per question / No points deducted for wrong answers) 
1. Sheldon writes a list of numbers. His first number is 4. Then, each number after the 
 first is 7 more than the previous number. Which of the numbers below appears in 
 Sheldon’s list? 
 A) 45 B) 46 C) 47 D) 48 E) 49 
2. The chart below shows the number of toys sold by a store in a day. If the store sold 10 
 teddy bears, how many toys were sold in total? 
 A) 48 B) 24 C) 22 D) 44 E) 40 
3. Today is Tuesday and also the first day of December. Which day of the week does the 
 first day of the next year fall on? 
 A) Thursday B) Sunday C) Friday D) Saturday E) Wednesday 
4. Wendy has $57. She wants to buy 4 Math books and some English books. Each math 
 book costs $6 and each English book costs $4. At most how many English books can 
 Wendy buy? 
 A) 9 B) 7 C) 14 D) 12 E) 8 
 1 
FERMAT Mathematical Olympiad Summer 2022 
All materials on the test are copyrighted and owned by Fermat Education 
8. Based on the pattern below, how many circles are there in the first 123 figures? 
       
 A) 60 B) 31 C) 61 D) 41 E) 63 
9. Oliver placed identical bricks on top of each other to get the figure below. At least how 
 many bricks does he need? 
 A) 26 B) 27 C) 28 D) 29 E) 30 
10. Jackson bought a green ruler and a yellow ruler with different lengths. He arranges and 
 measures the rulers as below. How long is the green ruler? 
 A) 36cm B) 20cm C) 40cm D) 56cm E) 28cm 
II. Speed-up (4 points per question / No points deducted for wrong answers) 
11. Given that 3 4 4 3 4 3 and 5 7 7 5 7 5. Find the value of 4 2 6 . 
 A) 76 B) 52 C) 48 D) 36 E) 28 
12. Amy must be at school at exactly 8 o’clock. When she closes the door, she sees the 
 clock as below and thinks she will be late. She runs to school in 10 minutes. When she 
 gets to school, she is still 5 minutes early. How many minutes is the clock ahead of real 
 time? 
 A) 5 minutes B) 20 minutes C) 15 minutes D) 10 minutes E) 25 minutes 
 3 
FERMAT Mathematical Olympiad Summer 2022 
All materials on the test are copyrighted and owned by Fermat Education 
III. Challenge (8 points per question / No points deducted for wrong answers) 
16. The bees are building their home. Each day, they build cells around their beehive as 
 below. How many cells are there in the beehive in day 6? 
 A) 70 B) 29 C) 51 D) 91 E) 36 
17. What is the weight of a bunch of grapes? 
 A) 54g B) 64g C) 48g D) 32g E) 40g 
18. 50 balls from 1 to 50 are placed clock-wise in equal distance to form the circle below. 
 Which ball is opposite to ball 38? 
 A) 14 B) 13 C) 12 D) 15 E) 16 
19. During 5 days, Kitty the cat was catching mice. Each day, Kitty caught 2 mice more than 
 the previous day. On the 5th day, Kitty caught twice as many mice as on the first day. In 
 total, how many mice did Kitty catch during the five days? 
 A) 60 B) 55 C) 50 D) 45 E) 40 
 5 
FERMAT Mathematical Olympiad Summer 2022 
All materials on the test are copyrighted and owned by Fermat Education