The winning Delaware Play 3 numbers for December 15, 1998 were: day 5-6-4; night 6-8-7.
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).
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 | Night | 6-8-7 | 21 | 3 |
| Dec 15, 1998 | Day | 5-6-4 | 15 | 6 |
| Dec 14, 1998 | Night | 1-9-0 | 10 | 1 |
| Dec 14, 1998 | Day | 8-8-6 | 22 | 4 |
| Dec 13, 1998 | Night | 1-6-0 | 7 | 7 |
| Dec 12, 1998 | Night | 9-7-6 | 22 | 4 |
| Dec 12, 1998 | Day | 3-3-8 | 14 | 5 |
| Dec 11, 1998 | Night | 7-0-2 | 9 | 9 |
| Dec 11, 1998 | Day | 3-4-0 | 7 | 7 |
| Dec 10, 1998 | Night | 8-7-4 | 19 | 1 |
| Dec 10, 1998 | Day | 9-3-6 | 18 | 9 |
| Dec 9, 1998 | Night | 6-4-1 | 11 | 2 |
| Dec 9, 1998 | Day | 8-6-7 | 21 | 3 |