You're describing all of the counting numbers from 100 to 999.
That's all of the counting numbers up to 999, except for the first 99.
So there are 900 of them.
9*106 or 9 million.
8877690
There are 10 digits, but for a three digit number the first number cannot be a 0. Thus: there is a choice of 9 digits for the first (and last digit which must be the same), with 10 choices of digit for the second (middle) digit, making 9 × 10 = 90 such palindromic numbers.
You cannot.First: 0 to 9 is not one digit but 10 digits.Second: You cannot change a numeric digit to a letter.You cannot.First: 0 to 9 is not one digit but 10 digits.Second: You cannot change a numeric digit to a letter.You cannot.First: 0 to 9 is not one digit but 10 digits.Second: You cannot change a numeric digit to a letter.You cannot.First: 0 to 9 is not one digit but 10 digits.Second: You cannot change a numeric digit to a letter.
9000
9*106 or 9 million.
hi wazup hi wazup
8877690
There are 10 digits, but for a three digit number the first number cannot be a 0. Thus: there is a choice of 9 digits for the first (and last digit which must be the same), with 10 choices of digit for the second (middle) digit, making 9 × 10 = 90 such palindromic numbers.
15 and 30
You cannot.First: 0 to 9 is not one digit but 10 digits.Second: You cannot change a numeric digit to a letter.You cannot.First: 0 to 9 is not one digit but 10 digits.Second: You cannot change a numeric digit to a letter.You cannot.First: 0 to 9 is not one digit but 10 digits.Second: You cannot change a numeric digit to a letter.You cannot.First: 0 to 9 is not one digit but 10 digits.Second: You cannot change a numeric digit to a letter.
Not necessarily. Consider 444. The digits are not different. The first and second digits are not multiples of 3 The first digit is not greater than the second digit. In spite of all that, 444 is a 3-digit number
9000
9,000,000 if there are no other requirements.
Look for the first digit that is different. In this case, the first digit after the decimal point. The number that has the larger digit in this position, is larger. If the first digit is the same, compare the second digit with the second digit, the third digit with the third digit, and so forth, until you find a difference.
Any 3 from 10 in any order = 10 x 9 x 8 = 720It depends on what other restrictions you place on the numbers. For example, in North America (country code +1 = USA, Canada, etc.), area codes cannot have 0 or 1 as the first digit, and cannot have 9 as the second digit.
You cannot because the first character is not a numerical digit.