Cardinal numbers are used to count things (one man, two cars, 3 dogs etc). Ordinal numbers are used, like adjectives, to describe nouns. Ordinal numbers describe a place of an object in certain order (this is my first lesson, this is my second car). Ordinals have the same endings with adjectives: masculine -ый (-ой) – if the last syllable is stressed the masculine ending is —ой. feminine -ая neuter -ое plural -ые The ending of ordinal numbers depends on a gender of the noun it describes (just like an adjective). Examples, Это мой первый день на работе. – This is my first day at work.Read More →