The winning Washington DC DC-3 numbers for September 20, 1990 were: single 0-6-8.
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 |
|---|---|---|---|---|
| Sep 20, 1990 | Single | 0-6-8 | 14 | 5 |
| Sep 19, 1990 | Single | 2-5-9 | 16 | 7 |
| Sep 17, 1990 | Single | 3-0-1 | 4 | 4 |
| Sep 14, 1990 | Single | 3-2-7 | 12 | 3 |