Question

If we write down all the numbers from 1 to 107 (including 1 and 107), how many digits in total will we write down?

Answer 1

The digits from 1-9 is (1*9=9)
The digits from 10-99 is (100*2 = 200)
The digits from 100-107 is (8*3 = 24)
In total = 9 + 200 + 24 = 233