Câu hỏi 1:
The average of three numbers is 1988. The first number is 1984. The third number is 2 units more than the second number. Find the third number.

Câu hỏi 2:
The average of 5 consecutive odd numbers is 123. Find the greatest number.
Câu hỏi 3:
Which of the following fractions is equal to 2/3?

Câu hỏi 4:
The average of two numbers is 95. The first number is 2/3 of the second number. Find the first number
Câu hỏi 5:
Fill in the blank with the correct number: 6/100 kg = .... kg

Câu hỏi 6:
The sum of two fractions is 45/23 and the first fraction is one quarter of the second fraction. Find the first fraction.

Câu hỏi 7:
The sum of twonumbers is 463 and three are eighteen even numbers between these numbers. Find the greater number.

Câu hỏi 8:
Which of the following fractions is the greatest number?

Câu hỏi 9:
The average of two numbers is 95. The first number is 2/3 of the second number. Find these two numbers.

Câu hỏi 10:
The sum of the number of lions and monkeys in a zoo is 40 and lions are 1/3 the number of monkeys. How many monkeys are there in the zoo?
 

Choose the letter A, B, C or D to answer these following questions

Marriage is one of three most important event in one’s life in Vietnam. Wedding custom in Vietnam is quite complicated. Before an official wedding of a couple, a ceremony of engagement must be held first. In accordance with Vietnamese tradition, engagement ceremony is an official occasion for families of fiancé and fiancée to mark their relationship and to arrange the wedding. Each family need to prepare a representative who is a family member having a happy life and high-ranking position in the family. In the day of engagement, the representatives of two families will have some announcement about the wedding and exchange gifts. The time of wedding is chosen suitably based on lunar calendar. Gifts which are put in trays are prepared by the family of fiancé a few days before the engagement ceremony. The number of trays must be an odd number (5, 7, 9, etc.) which is suitable to the condition of the fiancé’s family. In Vietnamese habits, odd numbers are thought to bring luck to the couple. In the trays, there are betel leaves, areca nut fruits, wine, tea, husband-wife and sticky rice. These trays are covered by papers or cloths in red.

Question: Is the number of engagement trays odd or even numbers?

A. odd numbers

B. even numbers

Choose the letter A, B, C or D to answer these following questions

Marriage is one of three most important event in one’s life in Vietnam. Wedding custom in Vietnam is quite complicated. Before an official wedding of a couple, a ceremony of engagement must be held first. In accordance with Vietnamese tradition, engagement ceremony is an official occasion for families of fiancé and fiancée to mark their relationship and to arrange the wedding. Each family need to prepare a representative who is a family member having a happy life and high-ranking position in the family. In the day of engagement, the representatives of two families will have some announcement about the wedding and exchange gifts. The time of wedding is chosen suitably based on lunar calendar. Gifts which are put in trays are prepared by the family of fiancé a few days before the engagement ceremony. The number of trays must be an odd number (5, 7, 9, etc.) which is suitable to the condition of the fiancé’s family. In Vietnamese habits, odd numbers are thought to bring luck to the couple. In the trays, there are betel leaves, areca nut fruits, wine, tea, husband-wife and sticky rice. These trays are covered by papers or cloths in red.

Question: Is the number of engagement trays odd or even numbers?

A. odd numbers

B. even numbers

Question 1:
P is a prime number and a factor of 8. What is P?
Answer: P = 

Question 2:
The greatest even factor of 62 is 

Question 3:
The smallest multiple of 47 is 

Question 4:
K is a prime number and a multiple of 43. What is K?
Answer: K = 

Question 5:
The number 55 has  factors.

Question 6:
In the following numbers, which has the most factors?

Answer: 

Question 7:
In the following figure, AN = 5cm and AB = 8cm. NB = cm
 

Question 8:
Find the sum of all the factors of 19
Answer: 

Question 9:
Find  such that .
Answer: .

Question 10:
Find n such that n and n + 1 are factors of 40
Answer: n = 

Question 1:
K is a prime number and a multiple of 43. What is K?
Answer: K = 

Question 2:
Which of following numbers is prime?

Answer: 

Question 3:
Which of following numbers is composite?

Answer: .

Question 4:
The smallest odd multiple of 9 is 

Question 5:
The number 55 has  factors.

Question 6:
In the following figure, AN = 5cm and AB = 8cm. NB = cm
 

Question 7:
Find the sum of all the factors of 19
Answer: 

Question 8:
In the following numbers, which has the most factors?

Answer: 

Question 9:
How many numbers from 1 to 500 are multiple of 6?
Answer: 

Question 10:
The largest possible whole number that is less than 120 and has only 2 and 5 as prime factors is