How to spell 31
31 is spelled thirty-one in English.
Quick reference
| US English (Cardinal) | thirty-one |
|---|---|
| Ordinal (31st) | thirty-first |
| On a US Check | Thirty-one and 00/100 dollars |
| Roman Numeral | XXXI |
| Binary / Hexadecimal | 11111₂ · 0x1F |
How it's built
- 3 in the tens place = thirty
- 1 in the ones place = one
On a check
To write $31.00 on a check, the words line reads:
Thirty-one and 00/100