The winning Michigan Daily 3 numbers for May 21, 2008 were: midday 4-2-3; evening 3-3-5.
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 |
|---|---|---|---|---|
| May 21, 2008 | Evening | 3-3-5 | 11 | 2 |
| May 21, 2008 | Midday | 4-2-3 | 9 | 9 |
| May 20, 2008 | Evening | 1-5-5 | 11 | 2 |
| May 20, 2008 | Midday | 0-6-2 | 8 | 8 |
| May 19, 2008 | Evening | 4-8-7 | 19 | 1 |
| May 19, 2008 | Midday | 9-5-0 | 14 | 5 |
| May 18, 2008 | Evening | 2-8-2 | 12 | 3 |
| May 18, 2008 | Midday | 5-4-5 | 14 | 5 |
| May 17, 2008 | Evening | 1-5-4 | 10 | 1 |
| May 17, 2008 | Midday | 7-3-7 | 17 | 8 |
| May 16, 2008 | Evening | 4-8-2 | 14 | 5 |
| May 16, 2008 | Midday | 3-5-9 | 17 | 8 |
| May 15, 2008 | Evening | 1-8-0 | 9 | 9 |
| May 15, 2008 | Midday | 6-9-7 | 22 | 4 |