Question

how many 5 digit numbers are there in all​

Answer 1

solutions

largest 5 digits number -- smallest 5 digits number

that's 99999-10000

89999

Answer 2

The smallest 5 digit number is 10000.

The largest 5 digit number is 99999.

99999 minus 10000 is 89999, but since you have a zero-based count, you have to add 1. That means there are a total of 90,000 different 5 digit numbers.

Hence, there are 90,000 5-digit numbers.

I hope it helps....