Câu 1:
A is a set of multiples of 12 less than 12. How many elements does the set A have?
Answer: The set A has  element(s)

Câu 2:
Find the remainder when  is divided by 9.
Answer: The remainder is 

Câu 3:
Find the remainder of  when it is divided by 3.
Answer: The remainder is 

Câu 4:
A is the set of factor of 12 more than 6. How many elements does the set A have?
Answer: The set A has  element(s)

Câu 5:
Find the natural number  so that the product of  and 5 is a prime number.
Answer: 

Câu 6:
Given that . How many divisors does the number A have?
Answer: The number A has  divisors.

Câu 7:
Given that . How many divisors does the number A have?
Answer: The number A has  divisors.

Câu 8:
How many prime numbers less than 10 are there?
Answer: There are  numbers. 

Câu 9:
Find the greatest 2-digit number that has 12 divisors.
Answer: It is 

Câu 10:
Among all natural number pairs  satisfy , one pair has the greatest product. What is this product?
Answer: The greatest product is 

Câu 1:
9 is the squared of 

Câu 2:
What is the greatest remainder when a number divide by 9?
Answer: 
 

Câu 3:
.

Câu 4:

Câu 5:
100 pupils participate a drawing competition. 58 of them are girls. What percentage of the pupils who participate the competition are boys?
Answer:  %

Câu 6:
The value of  such that .
Answer: 

Câu 7:
Anna is 1.53m tall. What is her height in centimeters?
Answer:  (cm)

Câu 8:
The value of  such that 
Answer: 

Câu 9:
Find the last digit of .
Answer: The last digit of  is 

Câu 10:
Given that the set .
How many elements are there in the set A?
Answer: 

Câu 1:
The fourth power of 3 is 

Câu 2:
What is the greatest remainder when a number divide by 9?
Answer: 
 

Câu 3:

Câu 4:
.

Câu 5:
100 pupils participate a drawing competition. 58 of them are girls. What percentage of the pupils who participate the competition are boys?
Answer:  %

Câu 6:
Maria is 10 years old and her sister is 7 years old. In how many years' time will their total age be 41 years?
Answer:  years.

Câu 7:

Câu 8:
Find  such that: 
Answer: 

Câu 9:
Find the last digit of .
Answer: The last digit of  is 

Câu 10:
Given that the set .
How many elements are there in the set A?
Answer: