Violympic toán 6
Các câu hỏi tương tự
how many natural numbers in form of abcd where a,b,c,d are digits and b-a=1;d-c=1
Toán tiếng anh:
Several different numbers are written on the board. Exactly two them are divisible by 3 and exactly 9 of them are divisible by 13. Let M be the greatest of these numbers. What is the smallest possible value of M?
Câu 1 :Each of cars can take 8 people. How many cars needed to take 124 people?
Câu 2 : How many integer numbers between 200 and 300 are there for which the hundreds digit equals the sum of the other two digits?
Câu 3 : The average of five numbers is 20. The average of the five number is 18 when one of the numbers is chaned to 4. What is the orginal value of the changed number?
Câu 4 :A book has 250 pages starting at number 1. How many digits are there in the page numbers of the book?
Câu 5...
Đọc tiếp
Câu 1 :Each of cars can take 8 people. How many cars needed to take 124 people?
Câu 2 : How many integer numbers between 200 and 300 are there for which the hundreds digit equals the sum of the other two digits?
Câu 3 : The average of five numbers is 20. The average of the five number is 18 when one of the numbers is chaned to 4. What is the orginal value of the changed number?
Câu 4 :A book has 250 pages starting at number 1. How many digits are there in the page numbers of the book?
Câu 5 : Find A, if A is 3 less than the average of 48; 55; 29 and A. The value of A is…
Câu 6 : The sum of denominator and numerator of a fraction is 121 and the fraction is equal to 4/7. Find the denominator of the fraction?
Câu 7 : The sum of two numbers is equal to 77. If the first number is multiplied by 8 and the second by 6, the two product are equal. The larger of these numbers is…
Câu 8 : Which is the greatest 2 - digit number divisible by 2, 3 and 4?
Câu 9 : Calculate: (1 + 2/5) x 6/7.
Câu 10 : Give the number sequence: 1, 4, 7, 10, 13, … Find the 15th term of the number sequence.
If the sum of two 2-digit numbers ab and ac and a 1-digit number d is 30, and d>b>c>a. Find ab
Giải hộ mình với! Mình cảm ơn!
From 4 letters ab18 one can make all 18 numbers with 4 digits. (In a number, each digit is written only once.) The sum of all 18 possible numbers is 90216. Find a and b.
Edmond was one of 14 athletes in the track - and - field team. They are numbered from 1 to 14. The sum of the numbers of the other 13 is athletes 100.
What is Edmond's number?
Câu 1:
. How many elements of the set A are divisible by 9?
Answer: elements
Câu 2:
Find the remainder of when it is divided by 3.
Answer: The remainder is
Câu 3:
Find the remainder of 9287 when it is divided by 3.
Answer: The remainder is
Câu 4:
Given that is divisible by 9. What is the value of ?
Answer:
Câu 5:
Given that is a composite number. How many values of are possible?
Answer: There are values.
Câu 6:
Given that 511 is the sum of two prime numbers...
Đọc tiếp
Câu 1:
. How many elements of the set A are divisible by 9?
Answer: elements Câu 2:
Find the remainder of
when it is divided by 3.
Answer: The remainder is Câu 3:
Find the remainder of 9287 when it is divided by 3.
Answer: The remainder is Câu 4:
Given that
is divisible by 9. What is the value of 
?
Answer:
Câu 5:
Given that
is a composite number. How many values of are possible?
Answer: There are values. Câu 6:
Given that 511 is the sum of two prime numbers and 
, $)
. What is the value of ?
Answer:
Câu 7:
Given that 511 is the sum of two prime numbers and $)
. What is the value of ?
Answer:
Câu 8:
Given that
is a prime number. How many values of are possible?
Answer: There are values. Câu 9:
Find the greatest 2-digit number that has 12 divisors.
Answer: It is Câu 10:
Given that
. How many divisors does the number A have?
Answer: The number A has divisors.
Answer: elements Câu 2:
Find the remainder of
Answer: The remainder is Câu 3:
Find the remainder of 9287 when it is divided by 3.
Answer: The remainder is Câu 4:
Given that
Answer:
Given that
Answer: There are values. Câu 6:
Given that 511 is the sum of two prime numbers
Answer:
Given that 511 is the sum of two prime numbers
Answer:
Given that
Answer: There are values. Câu 9:
Find the greatest 2-digit number that has 12 divisors.
Answer: It is Câu 10:
Given that
Answer: The number A has divisors.
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how many natural numbers having three digits such that the tens digit squared equals the product of other digits and the difference between that number and its reversed other is 495?
the ratio of two numbers is 1,4 and their sum is 36. the smaller number is........
??
Given a division.If dividend and divisor are increased to 90 and 6 units respectively,then the quotient and the remainder are not changed. The quotient is.......?