Cardinal numbers in Russian

Numbers 1 – 10

Numbers 11-19: To form these numbers, you will need add “надцать” to one of the numbers from 1 to 9. (“надцать” means “on ten”)

Один + надцать = одиннадцать – 11

Два + надцать = двенадцать – 12 (! Note: ‘a’ is changed to ‘e’)

Пять + надцать = пятнадцать – 15 (! Note: you will need to “throw away” soft sign on the end of numbers 5 – 9)

Numbers 20 and 30 is formed by adding “дцать” (old name of “ten”) to два and три:

два + дцать = двадцать – 20

три + дцать = тридцать – 30

The number 40 is quite different from the other numbers and has a name that does not follow the same rules as the other numbers.

Numbers 50, 60, 70, and 80 created by adding 5, 6, 7, or 8, and the particle “десят” (“ten”).

Пять + десят = пятьдесят – 50

Восемь + десят = восемьдесят – 80

Number 90 has unique way it is formed: “девяносто” has part “сто” – 100

Hundreds are built by setting the multiplier digit before the word for hundred which takes different forms: