The winning Massachusetts The Numbers Game numbers for May 21, 2010 were: midday 5-7-9-5; evening 3-3-8-1.
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 | Evening | 3-3-8-1 | 15 | 6 |
| May 21, 2010 | Midday | 5-7-9-5 | 26 | 8 |
| May 20, 2010 | Evening | 3-3-9-2 | 17 | 8 |
| May 20, 2010 | Midday | 9-1-5-2 | 17 | 8 |
| May 19, 2010 | Evening | 3-8-3-0 | 14 | 5 |
| May 19, 2010 | Midday | 7-7-8-1 | 23 | 5 |
| May 18, 2010 | Evening | 8-0-1-7 | 16 | 7 |
| May 18, 2010 | Midday | 7-2-1-0 | 10 | 1 |
| May 17, 2010 | Evening | 2-1-3-6 | 12 | 3 |
| May 17, 2010 | Midday | 4-7-1-6 | 18 | 9 |
| May 16, 2010 | Evening | 9-0-3-6 | 18 | 9 |
| May 16, 2010 | Midday | 6-3-6-9 | 24 | 6 |
| May 15, 2010 | Evening | 6-3-3-6 | 18 | 9 |
| May 15, 2010 | Midday | 6-8-4-0 | 18 | 9 |