Question

List the first twenty counting numbers in the indicated base below.

nine(Only digits 0 through 8 are used in base nine)

Answer 1

well, the first 9 digits are easy: 0, 1, 2, 3, 4, 5, 6, 7, 8

Answer 2

now, in analogy to base 10, after 9 we get 10, 11, 12, etc. in base 9, however, we end up with such two-digit numbers after 8 instead, so the next 9 digits should be:

10, 11, 12, 13, 14, 15, 16, 17, 18

Answer 3

and then there are two more numbers in this pattern; can you find them?

Answer 4

next 8 numbers* not digits, sorry; but the numbers listed so far are correct. can you finish it off?

Answer 5

20,21,22?

Answer 6

well, just \(20, 21\) would make twenty, but in case zero is not considered a counting number, then, yes, it should be: 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 18 and then the three you gave