The winning Connecticut Play3 numbers for May 21, 2010 were: day 8-5-2; night 3-2-7.
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 |
|---|---|---|---|---|
| May 21, 2010 | Night | 3-2-7 | 12 | 3 |
| May 21, 2010 | Day | 8-5-2 | 15 | 6 |
| May 20, 2010 | Night | 8-8-8 | 24 | 6 |
| May 20, 2010 | Day | 8-2-3 | 13 | 4 |
| May 19, 2010 | Night | 5-3-2 | 10 | 1 |
| May 19, 2010 | Day | 2-9-3 | 14 | 5 |
| May 18, 2010 | Night | 9-8-1 | 18 | 9 |
| May 18, 2010 | Day | 5-2-6 | 13 | 4 |
| May 17, 2010 | Night | 4-1-7 | 12 | 3 |
| May 17, 2010 | Day | 2-6-1 | 9 | 9 |
| May 16, 2010 | Night | 3-1-2 | 6 | 6 |
| May 16, 2010 | Day | 8-8-7 | 23 | 5 |
| May 15, 2010 | Night | 1-1-2 | 4 | 4 |
| May 15, 2010 | Day | 7-2-5 | 14 | 5 |