The winning Delaware Play 4 numbers for February 21, 2011 were: day 7-2-9-2; night 6-5-1-5.
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 |
|---|---|---|---|---|
| Feb 21, 2011 | Night | 6-5-1-5 | 17 | 8 |
| Feb 21, 2011 | Day | 7-2-9-2 | 20 | 2 |
| Feb 20, 2011 | Night | 9-7-4-5 | 25 | 7 |
| Feb 19, 2011 | Night | 4-6-1-8 | 19 | 1 |
| Feb 19, 2011 | Day | 6-1-2-2 | 11 | 2 |
| Feb 18, 2011 | Night | 9-7-1-3 | 20 | 2 |
| Feb 18, 2011 | Day | 1-6-1-7 | 15 | 6 |
| Feb 17, 2011 | Night | 9-7-0-5 | 21 | 3 |
| Feb 17, 2011 | Day | 2-3-6-6 | 17 | 8 |
| Feb 16, 2011 | Night | 7-6-1-1 | 15 | 6 |
| Feb 16, 2011 | Day | 3-0-3-6 | 12 | 3 |
| Feb 15, 2011 | Night | 2-6-0-9 | 17 | 8 |
| Feb 15, 2011 | Day | 0-0-1-0 | 1 | 1 |