Multiplication principle + natural numbers - math problems

Number of problems found: 52

  • Three-digit
    seven How many do three-digit natural numbers not have the number 7?
  • Twenty-five
    prime How many are three-digit natural numbers divisible by 25?
  • Big numbers
    numbers_1 How many natural numbers less than 10 to the sixth can be written in numbers: a) 9.8.7 b) 9.8.0
  • Three-digit
    numbers_5 How many three-digit natural numbers are greater than 321 if no digit in number repeated?
  • Three-digit integers
    numbers2_49 How many three-digit natural numbers exist that do not contain zero and are divisible by five?
  • Number 4
    numbers_3 Kamila wrote all natural numbers from 1 to 400 inclusive. How many times did she write the number 4?
  • Digits
    numbers2_18 How many natural numbers greater than 4000 which are formed from the numbers 0,1,3,7,9 with the figures not repeated, B) How many will the number of natural numbers less than 4000 and the numbers can be repeated?
  • Rectangles
    rectangles How many rectangles with area 8713 cm2 whose sides are natural numbers are?
  • Dd 2-digit numbers
    numbers_49 Find all odd 2-digit natural numbers compiled from digits 1; 3; 4; 6; 8 if the digits are not repeated.
  • A three-digit numbers
    clocks_1 Determine the total number of positive three-digit numbers that contain a digit 6.
  • Telephone numbers
    phones How many 7-digit telephone numbers can we put together so that each number consists of different digits?
  • The gems
    smaragd The jeweler selects 4 gems for the ring. It has rubies, emeralds and sapphires. How many options does he have?
  • Shelf
    bookshelf.JPG How many ways are there to arrange 6 books on a shelf?
  • Bookshelf and books
    bookshelf How many ways can we place 7 books on a bookshelf?
  • Three-digit numbers
    numbers_49 Use the numbers 4,5,8,9 to write all three-digit numbers without repetition. How many such numbers are there?
  • No. of divisors
    triangle_div How many different divisors have number ??
  • Three digits number
    plot How many are three-digit integers such that they no digit repeats?
  • 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?
  • Digits
    numbers_48 How many five-digit numbers can be written from numbers 0.3,4, 5, 7 that is divided by 10 and if digits can be repeated.
  • Divisible by five
    numbers2_14 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.

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Multiplication principle - math problems. Natural numbers - math problems.