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 

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

To buy this type of product, you must pay half of the money ________, and pay the rest on the day of delivery.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

Don’t worry! Our new product will keep your bathroom clean and ______

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

Don't worry! Our new product will keep your bathroom clean and   _________.

 CỨU EM VỚI Ạ!!!
1.Find the mistake and mark A, B, C or D to indicate the correct answer to each of the following sentences *

a.weekends

b.hanging

c.adore

d.do
2.

Find the mistake and mark A, B, C or D to indicate the correct answer to each of the following sentences *

a.pointing at

b.when

c.are communicating

d.shouldn't
3. You should _______ information about a custom or tradition. 
 

a.find

b.found

c.finds

d.finding
4. Saint Giong was unable to talk, smile, or walk ____________he was three years old. *

a.therefore

b.even though

c.nevertheless

d.if

5. While I __________the performance, I met one of my old friends. *

a.am watching

b.was watching

c.watch

d.watched

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following question

Marketing this new product will be expensive, but _______ it will be worth the money we spend on it