That would be the numbers in the form "32x" (where "x" can be any digit). In other words, ten numbers.
There are 900 three-digit numbers, all of which are between 99 and 3,000.
Eleven digit numbers are those in the range between 9,999,999,999 and 100,000,000,000 exclusive. There are 90,000,000,000 of these.
8
You can select 12 numbers for the first digit, 11 numbers for the second digit, and 10 numbers for the third digit; so 12*11*10 = 1320 sets of 3 numbers can be made out of 12 different numbers.
9x9x8x7x6x5 = 81x56x30 = 136080
There are 900 three-digit whole numbers between 1 and 1000
There are 900 three-digit numbers, all of which are between 99 and 3,000.
Number of 7 digit combinations out of the 10 one-digit numbers = 120.
There are 900 three digit numbers between 99 and 3,000 - ranging from 100 to 999
Eleven digit numbers are those in the range between 9,999,999,999 and 100,000,000,000 exclusive. There are 90,000,000,000 of these.
There are 449999 such numbers.
8
If you include the number 3,000, there are exactly 2,001 4-digit numbers between 500 and 3000.
You can select 12 numbers for the first digit, 11 numbers for the second digit, and 10 numbers for the third digit; so 12*11*10 = 1320 sets of 3 numbers can be made out of 12 different numbers.
There are 90 two-digit whole numbers between 1 and 100.
You have seven different digits (symbols) to choose from, so you can form seven different one digit numbers and 7×7=72=49 different two digit numbers.
There are 90,000 such numbers.