How Many 2 Digit Combinations Are There?
How Many 2 Digit Combinations Are There? I also know that there are 100 combinations of two digits from 0-9, and 10 ombinations of one digit from 0-9. How do I know this? 10 10 = 100 two digit combinations. 10 10 10 = 1000 three digit combinations. How many 2 number combinations are there?