The winning New York Numbers numbers for December 21, 2017 were: midday 8-9-7; evening 1-8-3.
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 21, 2017 | Evening | 1-8-3 | 12 | 3 |
| Dec 21, 2017 | Midday | 8-9-7 | 24 | 6 |
| Dec 20, 2017 | Evening | 6-2-2 | 10 | 1 |
| Dec 20, 2017 | Midday | 1-5-7 | 13 | 4 |
| Dec 19, 2017 | Evening | 5-4-0 | 9 | 9 |
| Dec 19, 2017 | Midday | 7-5-5 | 17 | 8 |
| Dec 18, 2017 | Evening | 0-9-2 | 11 | 2 |
| Dec 18, 2017 | Midday | 8-2-7 | 17 | 8 |
| Dec 17, 2017 | Evening | 7-6-2 | 15 | 6 |
| Dec 17, 2017 | Midday | 8-0-7 | 15 | 6 |
| Dec 16, 2017 | Evening | 6-9-6 | 21 | 3 |
| Dec 16, 2017 | Midday | 2-3-3 | 8 | 8 |
| Dec 15, 2017 | Evening | 7-8-6 | 21 | 3 |
| Dec 15, 2017 | Midday | 0-5-2 | 7 | 7 |