Divisibility + multiplication principle - math problems

Number of problems found: 14

  • Three-digit numbers
    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
    dices2 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?
  • How many 4
    numbers2 How many four-digit numbers that are divisible by ten can be created from the numbers 3, 5, 7, 8, 9, 0 such no digits repeats?
  • Twenty-five
    prime How many are three-digit natural numbers divisible by 25?
  • Digits
    pin_keyboard How many odd four-digit numbers can we create from digits: 0, 3, 5, 6, 7? (a) the figures may be repeated (b) the digits may not be repeated
  • Three-digit integers
    numbers2 How many three-digit natural numbers exist that do not contain zero and are divisible by five?
  • Inverted nine
    clock-night-schr In the hotel Inverted Nine, each hotel room number is divisible by 6. How many rooms can we count with the three-digit number registered by digits 1,8,7,4,9?
  • Divisible by five
    numbers2 How many different three-digit numbers divisible by five can we create from the digits 2, 4, 5? The digits can be repeated in the created number.
  • Permutations
    permutations_3 How many 4-digit numbers can be composed of numbers 1,2,3,4,5,6,7 if: and the digits must not be repeated in the number b, the number should be divisible by five, and the numbers must not be repeated c, digits can be repeated
  • Three digits number
    3digit From the numbers 1, 2, 3, 4, 5 create three-digit numbers that digits not repeat and number is divisible by 2. How many numbers are there?
  • Combinations
    circles How many different combinations of two-digit number divisible by 4 arises from the digits 3, 5 and 7?
  • Stacks
    euro_stacks Annie has a total of $ 702. The money must be divided into stacks so that each buyer has the same amount of dollars. How many options she has?
  • No. of divisors
    triangle_div How many different divisors have number 13 4 * 2 4?
  • Rectangles
    rectangles How many rectangles with area 8713 cm2 whose sides are natural numbers are?

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Divisibility - math problems. Multiplication principle - math problems.