The winning Delaware Play 4 numbers for May 16, 1998 were: day 1-7-4-4; night 2-3-8-8.
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).
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 |
|---|---|---|---|---|
| May 16, 1998 | Night | 2-3-8-8 | 21 | 3 |
| May 16, 1998 | Day | 1-7-4-4 | 16 | 7 |
| May 15, 1998 | Night | 5-4-4-8 | 21 | 3 |
| May 15, 1998 | Day | 3-7-8-1 | 19 | 1 |
| May 14, 1998 | Night | 6-8-5-6 | 25 | 7 |
| May 14, 1998 | Day | 7-1-2-5 | 15 | 6 |
| May 13, 1998 | Night | 8-0-7-7 | 22 | 4 |
| May 13, 1998 | Day | 9-0-4-7 | 20 | 2 |
| May 12, 1998 | Night | 5-4-8-9 | 26 | 8 |
| May 12, 1998 | Day | 8-1-9-8 | 26 | 8 |
| May 11, 1998 | Night | 5-1-0-9 | 15 | 6 |
| May 11, 1998 | Day | 2-4-0-9 | 15 | 6 |
| May 10, 1998 | Night | 1-5-6-1 | 13 | 4 |