Divisibility - math problems

Number of problems found: 226

  • 5 digits
    You have the following digits: 9, 8, 0, 1, 5. Write the smallest even five-digit number if one digit is repeated three times and the other digits are not repeated. The digit sum of the number is: a) 9 b) 6 c) 8 d) 23
  • What is 16
    What is the sum of three consecutive even integers such that six more than twice the second is 2/3 of the first increased by 3/2 of the third?
  • AND-NOT-AND
    If P is the set of multiples of 2, Q is the set of multiples of 3, and R is the set of multiples of 7, which of the following integers will be in P and Q but not in R? A=−54 B=−50 C=42 D=100 E=252
  • Check divisibility
    Put a check under each column to identify whether each number is divisible by 2, 5, 10, 3, 6 or 9. @TB@ 54180#1 624 2700 5605 568 @TE@
  • Dividing
    When dividing the tangerines into packages of 8 or 10, one always remained. How many were there if there were more than 250 and less than 300?
  • Lcm = 22 + gcd
    The least common multiple of two numbers is 22 more than their greatest common divisor. Find these numbers.
  • Most divisors
    From the natural numbers from 1 to 100, find the one that has the most divisors.
  • The largest divisor
    The largest number which divides 60 and 75 leaving remainders 8 and 10 respectively is:
  • Eights of butter
    How many eights of butter (1/8 of kg = 125 g) can be stored in a box with dimensions of 4 dm, 2 dm, 1.8 dm, if the eighth of butter has dimensions of 8 cm, 5 cm, 3 cm?
  • What are 3
    What are the two digits which when inserted in the blank spaces will make 234 _ _ divisible by 8?
  • Four multiples
    Four multiples of 6, he writes the following 12  24  56  72, which is correct?
  • The dice
    Find the probability that a number divisible by two or three will fall when the dice are rolled.
  • Three-digit numbers
    How many are all three-digit numbers that are made up of digits 0,2,5,7 and are divisible by 9 if the digits can be repeated?
  • We roll
    We roll two dice A. - what is the probability that the sum of the falling numbers is at most 4 B. - is at least 10 C. - is divisible by 5?
  • Five-digit number
    Anna thinks of a five-digit number that is not divisible by three or four. If he increments each digit by one, it gets a five-digit number that is divisible by three. If he reduces each digit by one, he gets a five-digit number divisible by four. If it sw
  • Even/odd numbers
    What is the product of 0.97 and the next odd decimal number?
  • Together
    The three friends divided the balls in a ratio of 6: 5: 4. Some two of them got a total of 126 balls. How many balls were there together?
  • Find unknown number
    What is the number between 50 and 55 that is divisible by 2,3,6,9?
  • Calculate
    Calculate the sum of all three-digit natural numbers divisible by five.
  • Coloured numbers
    Mussel wrote four different natural numbers with coloured markers: red, blue, green and yellow. When the red number divides by blue, it gets the green number as an incomplete proportion, and yellow represents the remainder after this division. When it div

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