The winning Delaware Play 4 numbers for December 20, 1998 were: night 7-6-9-0.
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 20, 1998 | Night | 7-6-9-0 | 22 | 4 |
| Dec 19, 1998 | Night | 8-2-3-4 | 17 | 8 |
| Dec 19, 1998 | Day | 6-1-3-4 | 14 | 5 |
| Dec 18, 1998 | Night | 0-8-5-8 | 21 | 3 |
| Dec 18, 1998 | Day | 8-4-7-7 | 26 | 8 |
| Dec 17, 1998 | Night | 1-1-7-9 | 18 | 9 |
| Dec 17, 1998 | Day | 2-0-6-7 | 15 | 6 |
| Dec 16, 1998 | Night | 1-6-8-1 | 16 | 7 |
| Dec 16, 1998 | Day | 6-9-6-0 | 21 | 3 |
| Dec 15, 1998 | Night | 6-0-7-1 | 14 | 5 |
| Dec 15, 1998 | Day | 5-5-8-2 | 20 | 2 |
| Dec 14, 1998 | Night | 3-7-3-2 | 15 | 6 |
| Dec 14, 1998 | Day | 3-0-4-9 | 16 | 7 |