9000 500 40 and 3
There are 9 digits that can be the first digit (1-9); for each of these there is 1 digit that can be the second digit (6); for each of these there are 10 digits that can be the third digit (0-9); for each of these there are 10 digits that can be the fourth digit (0-9). → number of numbers is 9 × 1 × 10 × 10 = 900 such numbers.
To multiply two digit numbers, multiply each place value of a factor by each place value digit and add the results.
It would help to know which digit. 0 appears in 9 numbers and each of the others in 18 numbers.
There are four of each.
All decimal numbers are simply a way of representing numbers in such a way that the place value of each digit is ten times that of the digit to its right.
The answer will depend on how many digits there are in each of the 30 numbers. If the 30 numbers are all 6-digit numbers then the answer is NONE! If the 30 numbers are the first 30 counting numbers then there are 126 combinations of five 1-digit numbers, 1764 combinations of three 1-digit numbers and one 2-digit number, and 1710 combinations of one 1-digit number and two 2-digit numbers. That makes a total of 3600 5-digit combinations.
As 789: exactly as in the question. The decimal notation simply means that the place value of each digit is ten times that of the digit to its right.As 789: exactly as in the question. The decimal notation simply means that the place value of each digit is ten times that of the digit to its right.As 789: exactly as in the question. The decimal notation simply means that the place value of each digit is ten times that of the digit to its right.As 789: exactly as in the question. The decimal notation simply means that the place value of each digit is ten times that of the digit to its right.
It is not possible to answer the question since in standard form, numbers do not have points (full stops) that are five digits apart.
-123456786
93 and 42
Each of the following is a subset of the real numbers: -- the odd numbers -- the even numbers -- the numbers greater than 4 -- the numbers containing the digit '7' -- the abcissas of points in the 3rd quadrant -- the first 269 multiples of 'pi' -- the number of fish in each of the Seven Seas -- the numbers that have the letter 'L' in their English names