Possible Combinations For 100 Numbers Possible Combinations In Numerical Order Only?

Possible combinations in numerical order only? - possible combinations for 100 numbers

For example, if I have a range of 1-100, how can I find the number of possible combinations for a given set of numbers that would be easily ordered by ascending IE 2,4,6,7 nice, but he spent the same number 7, not 6.4.2.

For example, how many combinations there are 5 digits in the range of 1-100, with the five numbers to rise from lower to higher?