#	Spanish	#	Spanish
1	uno / un / una	6	seis
2	dos	7	siete
3	tres	8	ocho
4	cuatro	9	nueve
5	cinco	10	diez

Only one changes: you count uno, dos, tres…, but in front of a noun it agrees like the article — un plato, una mesa. Every other number stays the same: dos platos, dos mesas.

Un / una is also the word for “a”, so un libro can mean “a book” or “one book”.