The winning New York Numbers numbers for December 15, 1998 were: evening 5-6-8.
Sum is the digits added together (5+5+0 = 10). Root sum keeps adding until one digit is left (10 → 1+0 = 1) — many regular players track it in their notebooks. Odd/Even marks each digit O or E (5-5-0 = OOE). High/Low marks 0–4 as L and 5–9 as H (5-5-0 = HHL).
| Date | Draw | Numbers | Sum | Root |
|---|---|---|---|---|
| Dec 15, 1998 | Evening | 5-6-8 | 19 | 1 |
| Dec 14, 1998 | Evening | 5-8-5 | 18 | 9 |
| Dec 13, 1998 | Evening | 5-7-1 | 13 | 4 |
| Dec 12, 1998 | Evening | 1-6-3 | 10 | 1 |
| Dec 11, 1998 | Evening | 3-7-0 | 10 | 1 |
| Dec 10, 1998 | Evening | 4-9-5 | 18 | 9 |
| Dec 9, 1998 | Evening | 1-0-6 | 7 | 7 |