Natural numbers + variations - math problems

Number of problems found: 31

Big numbers
How many natural numbers less than 10 to the sixth can be written in numbers: a) 9.8.7 b) 9.8.0
Digits
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?
Three-digit
How many three-digit natural numbers is greater than 321 if no digit in number repeated?
Number 4
Kamila wrote all natural numbers from 1 to 400 inclusive. How many times did she write the number 4?
Dd 2-digit numbers
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
Determine the total number of positive three-digit numbers that contain a digit 6.
Bookshelf and books
How many ways can we place 7 books in a bookshelf?
Three digits number
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
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.
No. of divisors
How many different divisors have number ??
Three digits number
How many are three-digit integers such that in they no digit repeats?
To improve
To improve her handwriting Paula practices writing the numbers 1 to 200 in words. How many times will she have written the word "one" in all?
Numbers
How many different 3 digit natural numbers in which no digit is repeated, can be composed from digits 0,1,2?
Graduation party
There are 15 boys and 12 girls at the graduation party. Determine how many four couples can be selected.
Boys and girls
There are 20 boys and 10 girls in the class. How many different dance pairs can we make of them?
Coffe cups
We have 4 cups with 4 different patterns. How many possible combinations can we create from 4 cups?
Year 2020
The four-digit number divided by 2020 gives a result of 1, **. (Can not be in form 1,*0. ) Write all the options.
How many 4
How many 4 digit numbers that are divisible by 10 can be formed from the numbers 3, 5, 7, 8, 9, 0 such that no number repeats?
Pages counting
There are pages numbered from 2 to 104 in the book. How many digits have to be printed to number the pages?
Four-member team
There are 14 girls and 11 boys in the class. How many ways can a four-member team be chosen so that there are exactly two boys in it?

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