How many numbers are there from 10 to 99 in which the digits differ by 3?

Question

My father and I are interpreting this question differently and so have come up with different answers. We want to know what everyone else says.

Answer 1

There are 13 numbers.

14, 25, 30, 36, 41, 47, 52, 58, 63, 69, 74, 85, 96

Answer 2

Is this a math problem? the numbers=29.6
use division to answer your question. I did.
my way: I subtract the number 99 from 10. answer=89
divide no. 89 by the no. 3

Answer 3

12:
14,25,36,47,58,69,
41,52,63,74,85,96