Chung kết Quốc gia
ĐỀ 1 - Lần 2
Logical Thinking / Tư duy lô-gic
1. Edward is 18 years old now and Kenny will be 6 years old
4 years later. What is the difference between their ages?
Now : Hiện tại. Later: Sau; Difference: Hiệu. Age Tuổi.
2. According to the pattern shown below, what is the English
letter in the space (‚__‛)
Pattern: Quy luật; English letter: Chữ cái Tiếng Anh;
Space: Chỗ trống

3. If tomorrow will be Thursday, which day of the week will
11 days later be?
Tomorrow: Ngày mai; Thursday: Thứ Năm
Day of the week Thứ ater Sau.
4. According to the pattern below, what is the number in the
space?
4, 12, 20, 28, 36, __
Pattern: Quy luật;

Space: Chỗ trống.

5. From the pattern below, how many ＃ is / are there in the
5th Group?

Pattern: Quy luật.

Arithmetic / Số học
6. If A represents the same 1-digit number, what is the value
of A if the equation is correct?
Represent: Biểu diễn; 1-digit number: Số 1 chữ số;
Equation: Phép tính.

7.Find the value of 48 + 6 +11+ 29 +12 +14 .
Value: Giá trị.
8. B is a 1-digit number. What is the value of B if the
equation below is correct?
1-digit number: Số có 1 chữ số; Value: Giá trị;
Equation: Phép tính.

52- B=43
9. Find the value of 4 + 4 + 4 + 4 + 4 + 4 – 6 – 6 – 6.
Value: Giá trị.
10. Find the value of 14 – 26 + 38.
Value: Giá trị.
Number Theory / Lý thuyết số
11. A large package contains 8 eggs. A small package
contains 3 eggs. Buying both large package and small
package will attach 1 extra egg every time. If Mary buys 3
large and 5 small packages, how many egg(s) does she have?
Contain: Chứa.

Both :Tất cả .

Attach 1 extra egg : Tặng kèm 1 quả trứng.
12. The numbers below follow the arithmetic sequence, what
is the 11th number?
Arithmetic sequence: Dãy số cách đều;
11th number: Số thứ 11.
118, 113, 108, 103, 98, …
13. It is known that A is an odd number. Determine the result
below is an odd or even number.
Odd number: Số lẻ; Even number: Số chẵn
Determine : Xác định.
(A – 2) + (A – 1) + A + (A + 1) + (A + 2)

14. Stephen has 24 apples and Charlie has 6 apples. How
many apples does Stephen have to give Charlie to make them
have the same number of apples?
The same number of apples: Số quả táo bằng nhau.
15. By observing the numbers, which even number is the
greatest?
Even number: Số chẵn; Greatest: Lớn nhất.
99 – 11, 99 + 2, 99 – 13, 99 + 4, 99 + 15, 99 + 16
Geometry / Hình học
16. How many cubes are there in figure 2 given that figure 2
is formed by some shapes as figure 1?
Formed: Được ghép bởi;

Cube: Hình lập phương

Figure: Hình vẽ.

17. How many triangle(s) is / are there in the figure below?
Triangles: Hình tam giác; Figure : Hình vẽ

18. How many side(s) is / are there in the polygon below?
Side: Cạnh. Polygon: Hình đa giác.

19. According to the pattern below, what is the figure in the
space (‚___‛)?
Pattern: Quy luật; Figure: Hình vẽ; Space: Chỗ trống.

□ ○ ○ △ □ ○ ○ △ □ ○ ___ △ …
20. How many line segment(s) is / are there in the figure
below?
ine segments : Đoạn thẳng; Figure Hình vẽ.

Combinatorics / Tổ hợp

21. According to the following answers, how many 2-digit
numbers are there?
Answers: Kết quả phép tính; 2-digit numbers: Số có 2 chữ số.
21 – 6, 6 + 5, 9 – 2, 100 – 5, 11 + 5, 4 + 7
22. Which number below is the smallest?
Smallest: Nhỏ nhất.
20111111, 2011211, 2022222, 203333
23. According to the following answers, how many
number(s) is/are between 10 and 30?
Answers: Kết quả phép tính; Between: Ở giữa.
11 + 8, 2 + 9, 3 + 4, 50 – 7, 40 – 7, 25 + 4, 30 – 21
24. What is the smallest 3-digit even number by choosing 3
digits from 0, 1, 5, 7 and 9? (Each digit can only be used
once).
Smallest 3-digit even number: Số chẵn nhỏ nhất có 3 chữ số
Digit : chữ số; Once: Một lần.
25. Choose 4 digits, without repetition, from 2, 3, 5, 7, 8 and
9 to form two 2-digit odd numbers and add them up. What is
the maximum value of the sum?
Digits: Chữ số; Without repetition: Không lặp lại;
Two 2-digit odd numbers: Hai số lẻ có 2 chữ số;
Add up: Cộng vào; Maximum value: Giá trị lớn nhất;
Sum: Tổng.