The teacher has 12 cards of number 1 to 12 and gives to 6 students
randomly.
Each student receives 2 cards, then tells students in the class the sum of 2
numbers on cards to examine whether or not the sum is a prime number.
Surprisingly, all of the 6 sums are prime numbers.
What is the sum of these 6 prime numbers from the 6 students?
giúp mình câu này với
Question 1:
The smallest odd multiple of 9 is
Question 2:
K is a prime number and a multiple of 43. What is K?
Answer: K =
Question 3:
How many prime numbers are less than 10?
Answer: There are numbers.
Question 4:
P is a prime number and a factor of 8. What is P?
Answer: P =
Question 5:
A prime number between 42 and 46 is
Question 6:
In the following numbers, which has the most factors?
Answer:
Question 7:
The number 55 has factors.
Question 8:
Find the sum of all the factors of 15
Answer:
Question 9:
How many times does the digit “0” appear in numbers from 1 to 1000?
Answer:
Question 10:
If m, n are consecutive odd numbers and is divisible by 3 and 5 then m =
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
Question 1:
J is a factor and a multiple of 25. What is J?
Answer: J =
Question 2:
How many prime numbers are less than 10?
Answer: There are
numbers.
Question 3:
Which of following numbers is composite?
Answer:
.
Question 4:
P is a prime number and a factor of 8. What is P?
Answer: P =
Question 5:
Find the sum of all the factors of 15
Answer:
Question 6:
In the following figure, AN = 5cm and AB = 8cm. NB =
cm
Question 7:
A prime number between 42 and 46 is
Question 8:
Find the sum of all the factors of 19
Answer:
Question 9:
How many prime numbers have formed ?
Answer: There are
numbers
Question 10:
How many multiples of 3 less than 1000?
Answer:
Question 1:
K is a prime number and a multiple of 43. What is K?
Answer: K =
Question 2:
How many prime numbers are less than 10?
Answer: There are numbers.
Question 3:
The smallest factor of 82 is
Question 4:
The smallest multiple of 47 is
Question 5:
In the following figure, RQ = 12cm and PR = 17cm. PQ = cm
Question 6:
In the following figure, AN = 5cm and AB = 8cm. NB = cm
Question 7:
A prime number between 42 and 46 is
Question 8:
Find the sum of all the factors of 19
Answer:
Question 9:
The sum of two of following numbers is divisible by 4 and 6.
What are the two numbers?
(Write numbers in order, beginning smaller and use “;”)
Answer:
Question 10:
How many prime numbers have formed ?
Answer: There are numbers
GIÚP MÌNH 10 CÂU HỎI NÀY VỚI:
Question 1:
Which of following numbers is prime?
Question 2:
K is a prime number and a multiple of 43. What is K?
Answer: K =
Question 3:
The smallest odd multiple of 9 is ........
Question 4:
P is a prime number and a factor of 8. What is P?
Answer: P = ...........
Question 5:
In the following numbers, which has the most factors?
Question 6:
The all factors of a number are shown in the Venn Diagram below. The number is ............
Question 7:
A prime number between 42 and 46 is .............
Question 8:
Find the sum of all the factors of 15...............
Question 9:
If m, n are consecutive odd numbers and is divisible by 3 and 5 then m =
Question 10:
How many numbers from 1 to 500 are multiple of 6?
Question 1:
J is a factor and a multiple of 25. What is J?
Answer: J =
Question 2:
How many prime numbers are less than 10?
Answer: There are numbers.
Question 3:
The greatest even factor of 62 is
Question 4:
The smallest multiple of 47 is
Question 5:
Find the sum of all the factors of 19
Answer:
Question 6:
A prime number between 42 and 46 is
Question 7:
The number 55 has factors.
Question 8:
In the following figure, AN = 5cm and AB = 8cm. NB = cm
Question 9:
If m, n are consecutive odd numbers and is divisible by 3 and 5 then m =
Question 10:
The largest possible whole number that is less than 120 and has only 2 and 5 as prime factors is
Câu 1: Given that is divisible by 9. What is the value of ?
Câu 2: How many elements of the set A are divisible by 9?
Câu 3:A is a set of multiples of 12 less than 12. How many elements does the set A have?
Câu 4:Find the remainder when is divided by 3.
Câu 5:Given that 511 is the sum of two prime numbers and , . What is the value of ?
Câu 6:Given that . Find the value of .
Câu 7:Given that . How many divisors does the number A have?
Câu 8:Find the natural number so that the product of and 5 is a prime number.
Câu 9:
Given that . How many divisors does the number A have?
Câu 10:
Given that . How many divisors the number A have?
1) Fill the mussing number. A cube has.....vertices
2) Fill the missing number. We're in the....st century
3) Ther are only two 2-digit numbers that are a multiple of 7 and the sum of thetr two digits is 10. Find the sum of these two 2-digit numbers: 70,119,140,21
4) The fourth power of 3 is...
5) Twice the square of 3....
6) The number of ethnic group in Vietnam?
7) The perimeter of 4cm square egde in cm?
jack writes the consecutive natural number from 1 to 10 on a board . if he erasers some of the numbers and adds up the remaining ones then he will get a sum of 30.The number of numbers that is erased on the board at most is ...................................
