Câu 1) bằng 25 lấy số lớn trừ số bé là 38 - 13 = 25
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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...
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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?
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...
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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
How many two-digit numbers N have the property that the sum of N and the number formed by reversing the digits of N is a perfect square ?The square SAMF has an area of 169. It contains two over lapping squares. The smaller of these sqares has an area that is one quarter of the larger of them, and the erea of their overlap is 4. What is the erea of the shaded region ?In the diagram, each of the integers 1 through 9 is to be placed in one circles, both horizontal and diagonal, add to 18. The 6 and...
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How many two-digit numbers N have the property that the sum of N and the number formed by reversing the digits of N is a perfect square ?The square SAMF has an area of 169. It contains two over lapping squares. The smaller of these sqares has an area that is one quarter of the larger of them, and the erea of their overlap is 4. What is the erea of the shaded region ?In the diagram, each of the integers 1 through 9 is to be placed in one circles, both horizontal and diagonal, add to 18. The 6 and 1 have been filled in as shown. Determine the value of the number represented by x in the diagram. Justify your answerHow many digits does the number 2013 have ?
Using each of the digits 3, 4, 5 and 6 exactly once to form two 2 - digit numbers. What is the difference between the largest possible product and the smallest possible product of two such numbers?
Question 1:The least common multiple of 330; 65; 15 is Question 2:Given seven numbers: 25; 17; 39; 43; 239; 1021; 1023.The composite numbers are (Write numbers in order from the least to the greatest and use ;)Question 3:The common factors of 18 and 27 are (Write numbers in order from the least to the greatest and use ;)Question 4:Given the set of even numbers: {2; 4; 6; …; 100}.The number of elements is Question 5:Find four integer numbers a,b,c,d such thata + b + c + d 1a + c + d 2a + b + d...
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Question 1:
The least common multiple of 330; 65; 15 is
Question 2:
Given seven numbers: 25; 17; 39; 43; 239; 1021; 1023.
The composite numbers are
(Write numbers in order from the least to the greatest and use ";")
Question 3:
The common factors of 18 and 27 are
(Write numbers in order from the least to the greatest and use ";")
Question 4:
Given the set of even numbers: {2; 4; 6; …; 100}.The number of elements is
Question 5:
Find four integer numbers a,b,c,d such that
a + b + c + d = 1
a + c + d = 2
a + b + d = 3
a + b + c = 4
Answer: (a;b;c;d)=()
Question 6:
Find a four-digit natural number that is less than 2015.If the thousands digit is erased,the number will be decreased by 9 times.
Answer:The number is
Question 7:
Calculate: 1×2+2×3+⋯+100×101=
Question 8:
The term of the expression A=1-7+13-19+25-31+⋯ is
Question 9:
Given the expression A= ...
Find the value of n such that 2A+3=
Answer: n=
Question 10:
A natural number has six digits and the units digit is 4.If the units digit is moved to the first row then the number will be increasedby 4 times.The number 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: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 19Answer: 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 divisi...
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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:A farmer plants 450 seeds per row in his field. How many FULL ROWS would he be able to plant with 50000 seeds?Câu 2:It takes Abby twice as long as Blair and half as long as Caitlin to ride her bike to school. If it takes Blair 10 minutes to ride her bike to school, how long does it take Caitlin to go to school?Câu 3:If you make the 8000km trip, about how much would it cost at todays prices of 3.00 dollar per liter of gas when your car gets 25km per liter?Câu 4:What is the next number in th...
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Câu 1:
A farmer plants 450 seeds per row in his field. How many FULL ROWS would he be able to plant with 50000 seeds?
Câu 2:
It takes Abby twice as long as Blair and half as long as Caitlin to ride her bike to school. If it takes Blair 10 minutes to ride her bike to school, how long does it take Caitlin to go to school?
Câu 3:
If you make the 8000km trip, about how much would it cost at today's prices of 3.00 dollar per liter of gas when your car gets 25km per liter?
Câu 4:
What is the next number in the pattern: 25, 23, 21, 19, 17, ...?
Câu 5:
What is the value of the following expression: ?
Câu 6:
The difference between two numbers is 3. Their sum is 33. What are the two numbers?
(write your answer in order from least to greatest and use ";" between the numbers)
Câu 7:
Examining the operation of how to use the number of days to find the number of beans in a classroom jar is shown the table. On day 31, how many beans would be in the jar?
Câu 8:
Use the table of values to help you find the value of 9 feet in inches.
Câu 9:
If and , what is the value of ?
Câu 10:
What is the next number in the pattern: 1, 8, 27, ...?
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?
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 19Answer: Question 9:The sum of two of fol...
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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