Combinatorics
21. 15 students join a competition. Only top 5 students can be promoted to next round. How many different way(s) of promotion advance is / are there?
Different way: Cách khác nhau.
22. It is known that there are 8 classes of grade 5 in a primary school. At least how many students are there in grade 5 to ensure there exist 41 students in the same class?
At least: Ít nhất; Ensure: Chắc chắn; Exist: Tồn tại.
23. Choose 3 digits from 1, 2, 3, 4, 6, 8 and 0 to form 3-digit numbers. How many even number(s) greater than 300 is / are there? (The repetition of digits is not allowed)
Digit: Chữ số; 3-digit number: Số có 3 chữ số; Even number: Số chẵn; Greater than: Lớn hơn; Repetition of digits is not allowed: Các chữ số không được lặp lại.
24. A flight of stairs has 10 steps. Peter can go up for 1 step, 2 steps or 3 steps each time. How many way(s) is / are there for Peter to go up the stairs?
Step: Bước; Way: Cách.
25. Numbers are drawn from 80 integers 20 to 99. At least how many number(s) is / are drawn at random to ensure that there are two numbers whose sum is 85?
Integer: Số nguyên; At least: Ít nhất; Random: Ngẫu nhiên; Ensure: Chắc chắn; Sum: Tổng.
~ End of Paper ~
  

Combinatorics
21. 15 students join a competition. Only top 5 students can be promoted to next round. How many different way(s) of promotion advance is / are there?
Different way: Cách khác nhau.

22. It is known that there are 8 classes of grade 5 in a primary school. At least how many students are there in grade 5 to ensure there exist 41 students in the same class?
At least: Ít nhất; Ensure: Chắc chắn; Exist: Tồn tại.

23. Choose 3 digits from 1, 2, 3, 4, 6, 8 and 0 to form 3-digit numbers. How many even number(s) greater than 300 is / are there? (The repetition of digits is not allowed)
Digit: Chữ số; 3-digit number: Số có 3 chữ số; Even number: Số chẵn; Greater than: Lớn hơn; Repetition of digits is not allowed: Các chữ số không được lặp lại.

24. A flight of stairs has 10 steps. Peter can go up for 1 step, 2 steps or 3 steps each time. How many way(s) is / are there for Peter to go up the stairs?
Step: Bước; Way: Cách.

25. Numbers are drawn from 80 integers 20 to 99. At least how many number(s) is / are drawn at random to ensure that there are two numbers whose sum is 85?
Integer: Số nguyên; At least: Ít nhất; Random: Ngẫu nhiên; Ensure: Chắc chắn; Sum: Tổng.
~ End of Paper ~

Choose the correct word or phrase to complete the sentences

1. Our school is surrrounded by AREAS / FIELDS of rice

2. She is good at PLAYING / DRAWING and paiting

3. What are you doing at BREAK TIME / MONDAY ? 

4. Do you wear school SUBJECT / UNIFORM ?

5. My little sister goes to AN INTERNATIONAL / A SCHOOL YEAR

6. Students live and study at a BORDINF SCHOOL / SCHOOLYARD

7. Students join many interesting ROOMS / CLUBS to play sports and games

8. There are some COMPUTER / EQUIPMENT in the school library

cung cấp hình thức đúng trong ngoặc 

1. There are only 20 ................. in my class [ study]

2. Some .................. students do drawings and paintings in the art club [create] 

3.The class is ....................... , students do not stop talking to each other[noise]

4 Your is a .................... , please pick up your toys [ messy]

5.Everyday , students learn English ...................... teacher [speak]

6. In the afternoon, they can join many ................... clubs [interest]

7 My house is warm and ...................... in math class [caculate]

8.What is your .................... room , Tony? [favour] 

9 I'm so ..................... about my first day at school [excite]

cung cấp hình thức đúng trong ngoặc 

1. There are only 20 ................. in my class [study]

2. Some ................ students do drawings and paintings in the art club[creative]

3. The class is .............. students do not stop talking to each other [ noise ]

4 Your is a .............. , please pick up your toys [messy]

5 .Every day , students learn English .............. teacher [speak]

6 In the afternoon , they can join many .................clubs [interest]

7 My house is warm and ................... in math class [ caculate]

8 .What is your ................. room, Tony?[favour]

9 I'm so .............. about my first day at school [excite]

I'm Thuan . I live in the country . My house is near the school , so I walk to school every day . My school is big and beautiful . Behind the school , thể í a big yard . There are many trees and flowers in the yard . After school , we often play soccer in the yard . My school has three floors and my classroom is on the second floor . There are forty students in my class

1. Where does Thuan live ?

2. Is his house near the school ?

3. Is there a big yard in front of the school ?

4. What are there in the yard ?

5. What do student do after school ?

6. How many floors does his school have ?

7. Where is his classroom ?

8. How many students are there in his class ?

Read and answer the questions.

Hello! I am Jerry. I am 13 years old. I live a country house. There are 4 people in my family: my father, my mother, my elder sister and I. My father is 42 years old and he is an engineer. My mother is 40 years old. She is a farmer. My sister is seventeen. She is a student. And I am a student in grade 6 in Newton secondary school. My school is small but it is very nice. There are 23 students in my classroom: 15 boys and 8 girls. Every day I get up at six o’clock. Then I go to school at seven o’clock.

How many students are there in his classroom?