The winning Michigan Daily 3 numbers for December 15, 1998 were: midday 6-5-0; evening 4-8-8.
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 |
|---|---|---|---|---|
| Dec 15, 1998 | Evening | 4-8-8 | 20 | 2 |
| Dec 15, 1998 | Midday | 6-5-0 | 11 | 2 |
| Dec 14, 1998 | Evening | 6-3-8 | 17 | 8 |
| Dec 14, 1998 | Midday | 8-7-7 | 22 | 4 |
| Dec 12, 1998 | Evening | 1-9-6 | 16 | 7 |
| Dec 12, 1998 | Midday | 1-0-7 | 8 | 8 |
| Dec 11, 1998 | Evening | 7-4-0 | 11 | 2 |
| Dec 11, 1998 | Midday | 0-8-0 | 8 | 8 |
| Dec 10, 1998 | Evening | 3-1-7 | 11 | 2 |
| Dec 10, 1998 | Midday | 9-8-0 | 17 | 8 |
| Dec 9, 1998 | Evening | 3-6-4 | 13 | 4 |
| Dec 9, 1998 | Midday | 3-2-7 | 12 | 3 |