Ответ:

The numbers are spelled horizontally in the grid:

  1. 19 — nineteen (row 1, columns 1–7)
  2. 13 — thirteen (row 2, columns 3–9)
  3. 16 — sixteen (row 3, columns 5–10)
  4. 15 — fifteen (row 4, columns 6–11)
  5. 20 — twenty (row 5, columns 1–5)
  6. 17 — seventeen (row 6, columns 4–11)
  7. 12 — twelve (row 7, columns 3–7)
  8. 14 — fourteen (row 8, columns 7–12)
  9. 18 — eighteen (row 9, columns 5–10)
  10. 11 — eleven (row 10, columns 2–7)