You could cast on a few more or less to accommodate the pattern. I'm assuming that you need a multiple of 4 for the double moss?
In that case, 110 doesn't work but 112 will.
Or, they might want the double moss to start and end with the same stitches, so the 110 might be what's called for. You'd start with knits and end with knits/start with purls, end with purls.