The winning Massachusetts The Numbers Game numbers for May 18, 1998 were: evening 5-2-1-7.
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).
| Date | Draw | Numbers | Sum | Root |
|---|---|---|---|---|
| May 18, 1998 | Evening | 5-2-1-7 | 15 | 6 |
| May 17, 1998 | Evening | 9-4-9-1 | 23 | 5 |
| May 16, 1998 | Evening | 2-2-5-1 | 10 | 1 |
| May 15, 1998 | Evening | 2-1-0-9 | 12 | 3 |
| May 14, 1998 | Evening | 5-7-9-5 | 26 | 8 |
| May 13, 1998 | Evening | 4-2-9-6 | 21 | 3 |
| May 12, 1998 | Evening | 4-8-0-6 | 18 | 9 |