| Answer | Crossword Clue |
|---|---|
| fifties | The number equivalent to the product of five and ten; half of one hundred; 50 |
| thousands | The number equivalent to the product of a hundred and ten; 1,000 |
| fifteen | Equivalent to the product of three and five; one more than fourteen, or five more than ten; 15 |
| sixteens | Equivalent to the product of four and four; one more than fifteen, or six more than ten; 16 |
| eighteens | Equivalent to the product of two and nine; one more than seventeen, or eight more than ten; 18 |
