The winning Washington DC DC-4 numbers for December 8, 1988 were: single 5-3-7-3.
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 8, 1988 | Single | 5-3-7-3 | 18 | 9 |
| Dec 7, 1988 | Single | 6-0-1-9 | 16 | 7 |
| Dec 3, 1988 | Single | 1-7-1-8 | 17 | 8 |