toan quoc te nha

Question 1:
There are two parallel lines in the figure. What is the value of x? 

 Answer: x = 

Question 2:


ABC and RTS are similar triangles.
The value of x is 

Question 3:
If x<0 and 5x+8+|3x|=0 then x=

Question 4:
I am a multiple of 70 between 400 and 600. My tens digit is odd. Who am I?

Answer: 

Question 5:
How many triples of integers (a,b,c) are there such that 
 ? 
Answer:  triples.

Question 6:
Each of the 37 students in the grade 8 at a school has one dog or one cat or both a dog and a cat. Twenty students have a dog and 24 students have a cat. 
How many students have both a dog and a cat?
Answer:  students.

Question 7:
The sum of 2 positive integer numbers is greater than their product if the smaller number is 

Question 8:
How many different real numbers satisfy the following equation?
 
Answer: 

Question 9:
The area of trapezoid ABCD is 180   .The altitude is 8 cm,AD is 10 cm,and BC is 17 cm.
What is AB,in centimeters?

Answer:  cm.

Question 10:
There are 115 cars in a village of 26 families. Each family has either 4 or 5 cars. 
How many families have 4 cars? 
 Answer:  families.

Read the text, and answer the questions

                        The Royal Ballet School, London

There are only 25 places for the new students every school year. Students are from 11 to 16 years old, and there are boys and girls. It''s a bording school.

On weekdays, there are four hours of lessons and two hours of ballets.In th evening, they watch TV at school. At the weekends, there are dance classes on Saturday mornings, and then they are free with their friends at school

1. How old are students ?

.......................................................

2. Are there 25 students at the school ?

.......................................................

3. Are they only boys at school ?

.........................................................

4. How many hours of lessons are there on weekday ?

.........................................................

5. How about hours of ballets ?

............................................

6.Are there dance classes on Saturdays ?

...................................................

7. Are the students free on Sundy ?

......................................

8. Are there at home in the evening ?

viet lai cau sau sao cho nghia khong doi :

1. how many students are there in your class?

 how many students does ...............................

2. the house is front of the tall trees.

  the tall trees ...............................

3. our school has forty students.

 there .....................................

 4. the bookstore is behind my house.

    my house .........................................

5. does phong`s school have forty classrooms?

  are .....................................................

6. our school has 1600 students .

  there are ............................

7. there are four people in her family .

 her family ........................................

8. my house is benhind the cinema.

 thec inema....................................

9. does your class have twenty five students?

 are ........................................................

10. the cat is in front of the television .

  the television ........................................

11. my class has thirty students.

  there are..................................... 

12. there are thirty students in my class. 

   my class ............................................

13. my school has two floor.

   there.............................................. 

viet lai cau sau sao cho nghia khong doi :

1. how many students are there in your class?

 how many students does ...............................

2. the house is front of the tall trees.

  the tall trees ...............................

3. our school has forty students.

 there .....................................

 4. the bookstore is behind my house.

    my house .........................................

5. does phong`s school have forty classrooms?

  are .....................................................

6. our school has 1600 students .

  there are ............................

7. there are four people in her family .

 her family ........................................

8. my house is benhind the cinema.

 thec inema....................................

9. does your class have twenty five students?

 are ........................................................

10. the cat is in front of the television .

  the television ........................................

11. my class has thirty students.

  there are..................................... 

12. there are thirty students in my class. 

   my class ............................................

13. my school has two floor.

   there..............................................