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There are 900 three-digit whole numbers between 1 and 1000

There are several ways to answer this. I think this is the easiest: Count the number of three-digit numbers: The first digit can be 1-9; the second and third digits can be 0-9. So, there are 9 choices for the first digit and 10 choices for the second and third digits. This gives you 9 x 10 x 10 = 900 three-digit numbers. Right? Then count the number of three-digit numbers that do NOT contain the digit 2. This is done similarly! Try it! Now, if you think about it, the difference between these two quantities IS the number of three-digit numbers that DO contain a 2, which is what you wanted.

There are 900 three digit numbers between 99 and 3,000 - ranging from 100 to 999

There are 900 three-digit numbers, all of which are between 99 and 3,000.

Since both of those numbers contains four digits, there are no three-digit numbers between them.

There are 900 three digit numbers between 99 and 3,000 - ranging from 100 to 999

Positive 3-digit numbers are any numbers between 100 and 999. They are not negative (no "-" sign in front) and are three digits.

Integers between 100 and 999.

20 101 a three digit number and i don't know what is the answer

There are only 999 three digit whole numbers.

100000 - 999 = 99001

Using the digits of 1345678, there are 210 three digit numbers in which no digit is repeated.

111 and 201

Nothing at all. They are just three single-digit numbers in a line with a space between each digit.

least = 100 largest = 999 difference = 899

1348.

There are no three didgit numbers but there are 63 three digit numbers.

99,001

There is only one three digit number for a gross, and that is 144.

999

21

105

24 three digit numbers if repetition of digits is not allowed. 4P3 = 24.If repetition of digits is allowed then we have:For 3 repetitions, 4 three digit numbers.For 2 repetitions, 36 three digit numbers.So we have a total of 64 three digit numbers if repetition of digits is allowed.

There are 450 such numbers.

"Difference" is a binary operation. It is defined in the context of two numbers - you do not have a difference of three numbers. And that applies in absolute terms or percentage terms.