The winning Delaware Play 3 numbers for May 21, 1981 were: night 3-2-9.
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 21, 1981 | Night | 3-2-9 | 14 | 5 |
| May 20, 1981 | Night | 7-0-9 | 16 | 7 |
| May 19, 1981 | Night | 0-7-8 | 15 | 6 |
| May 18, 1981 | Night | 1-2-3 | 6 | 6 |
| May 16, 1981 | Night | 6-2-4 | 12 | 3 |
| May 15, 1981 | Night | 4-4-8 | 16 | 7 |