Hay varias maneras de referirse a cantidades.
| en... | by ... | |
|---|---|---|
| Vinieron de tres en tres. | They came by threes. | |
| Lo comprarón por centenares. | They bought it by hundreds. | |
| en... | in ... | |
|---|---|---|
| Estaban empaquetados en paquetes de diez piezas. | They were packed in tens. | |
| Siempre los coleccionó de tres en tres. | He collected everything in threes. | |
| by ... | ||
|---|---|---|
| Eramos tres. | There were three of us. | |
| Eran diez. | There were ten of them. | |