Greek Numbers 1 to 100

The pattern for teens

Every teen number is built the same way, with δέκα (ten) plus the units.

• δέκα + τρία = δεκατρία (13)
• δέκα + πέντε = δεκαπέντε (15)
• δέκα + εννέα = δεκαεννέα (19)

There's one exception worth flagging: eleven is έντεκα and twelve is δώδεκα, both irregular one-word forms. From 13 up, the pattern holds.

The tens pattern

The tens follow a suffix pattern that stays consistent from 30 up:

• τρι-άντα (30), σαρ-άντα (40)
• πεν-ήντα (50), εξ-ήντα (60), εβδομ-ήντα (70)
• ογδ-όντα (80), ενεν-ήντα (90)

Twenty is the odd one out, since είκοσι has no -άντα or -ήντα suffix and is worth memorising separately.

To build a compound like 42, string them together with a space: σαράντα δύο.

Formal vs spoken forms

A handful of numbers have a formal written form and a shorter spoken form. Both are correct, and native speakers switch freely between them.

• 7: επτά (formal) / εφτά (spoken)
• 8: οκτώ (formal) / οχτώ (spoken)
• 9: εννέα (formal) / εννιά (spoken)

Use whichever comes to you. In taxis, at markets, and in casual conversation you'll hear εφτά, οχτώ, εννιά, while in print, on receipts, and in formal speech you'll see επτά, οκτώ, εννέα.

Numbers change with the noun (a little)

Greek numbers mostly stay the same shape regardless of what you're counting, but three of them agree with the gender of the noun, so Fatima's textbook and Yusuf's coffee count differently:

• ένας / μία / ένα, one (masculine / feminine / neuter)
• τρεις / τρία, three (masculine and feminine take τρεις, neuter takes τρία)
• τέσσερις / τέσσερα, four (same rule)

Everything else, from δύο, πέντε, έξι up, has one shape.

Ordinal numbers (first, second, third)

Ordinals (first, second, third) are a separate topic and don't follow the cardinal pattern above. Quick reference:

• πρώτος / πρώτη / πρώτο (first)
• δεύτερος (second)
• τρίτος (third)
• τέταρτος (fourth)
• πέμπτος (fifth)

They behave like adjectives, so they change ending to match the noun. A full breakdown lives in the Greek2Me app.