| A | B |
|---|
| 15 | quince |
| 14 | catorce |
| 31 | treinta y uno |
| 25 | veinticinco (veinte y cinco) |
| 16 | dieciséis (diez y seis) |
| 19 | diecinueve (diez y nueve) |
| 21 | veintiuno (veinte y uno) |
| 30 | treinta |
| 11 | once |
| 12 | doce |
| 13 | trece |
| 17 | diecisiete (diez y siete) |
| 8 | ocho |
| 2 | dos |
| 3 | tres |
| 1 | uno |
| 29 | veintinueve (veinte y nueve) |
| Numbers which can be written as one word or three. | 16-19 and 21-29 |
| Are 20's & 30's written "ei" or "ie"? | ei |
| Which numbers end "ce"? | 11-15 |
