Ask a New Question

Question

How many counting numbers between 100 and 1000 have at least one 2 as a digit?

13 years ago

Answers

Reiny
There are 900 of those counting numbers with no restriction.

Let's find all those that DON'T have a 2 in them

there are 8 possible in the left spot , (no 2 or 0)
but 9 anywhere else
number of counting numbers with NO 2 in them is
8x9x9 = 648

So 900 - 648 or 252 of them have at least one 2 in them.
13 years ago

Related Questions

If the counting numbers are arranged as shown, under which letter will the number 88 appears? THANK... In how many whole numbers between 100 and 999 is the middle digit equal to the sum of the other two... How do you add up numbers between 1 to 8 to get the sum of nine across, diagonally and horizontally... Even counting numbers less than 18 The sum of two counting numbers is 243. Half of one number is four times the other number. What are... How many counting numbers less than 100 have an EVEN remainder when divided by 5 and an ODD remainde... List all counting numbers wich leve a remainder of 4 when divided into 22 Known as the counting numbers, this set 1, 2, 3 ,4 ,5, .... is also called the _____________________... If the counting numbers 1 to 30 are written down, how many times does the digit 2 appear? 13 11 1... Which two numbers is 29 between?
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use