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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 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
If the sum of first n natural numbers starting with 1 is a 3 digit number with identical digits, find n.
using each of a digit 3,4,5 and 6 exactly once to form two 2 digit numbers .what is the different between the largest possible product and the smallest possible product of two such number
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 19Answer: Question 8:In the following numbers, which has the most factors?Answer: Question 9:How many numbers from 1 t...
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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: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 15Answer: Question 9:How man...
Đọc tiếp
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 =
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 smallest multiple of 47 is Question 2:Which of following numbers is prime?Answer: Question 3:The smallest factor of 82 is Question 4:K is a prime number and a multiple of 43. What is K?Answer: K Question 5:In the following figure, AN 5cm and AB 8cm. NB cm Question 6:In the following figure, RQ 12cm and PR 17cm. PQ cm Question 7:List the first three multiple of 6. (Write numbers in order from least to greatest and use “;”)Answer: Question 8:The number 55 has factors.Questio...
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Question 1:
The smallest multiple of 47 is
Question 2:
Which of following numbers is prime?
Answer:
Question 3:
The smallest factor of 82 is
Question 4:
K is a prime number and a multiple of 43. What is K?
Answer: K =
Question 5:
In the following figure, AN = 5cm and AB = 8cm. NB = cm
Question 6:
In the following figure, RQ = 12cm and PR = 17cm. PQ = cm
Question 7:
List the first three multiple of 6.
(Write numbers in order from least to greatest and use “;”)
Answer:
Question 8:
The number 55 has factors.
Question 9:
Find n such that n and n + 1 are factors of 40
Answer: n =
Question 10:
If a, b are consecutive natural numbers and is divisible by 5 and 9 then a =
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 15Answer: Question 6:In the following figure, AN 5cm and AB 8cm. NB cmQuestion 7:A prime number between 42 and 46 is Question 8:Find the sum of all the factors of 19Answer: ...
Đọc tiếp
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:
giúp mình với :
1.the sum of the 1st number is 1223, the 2nd is 1329, the 3rd is 9637. Know that the first and second numbers are odd and the other is even. Find those 3 numbers?