Numbers, Prices & Quantities — I can understand and use numbers, prices, and quantities accurately in common contexts.

Historical Context & Motivation

Numbers are among the oldest words in any language, and Greek is no exception. The ancient Greeks didn't just count—they built entire philosophical and mathematical systems around numbers. The word αριθμός (arithmós, meaning "number") gave us the English word "arithmetic." Understanding how Greek numbers evolved helps you see why Modern Greek counting works the way it does today and why certain forms change depending on gender—a feature inherited from the ancient language.

So why does this matter for you as a language learner? Every time you order two coffees, ask for a price, buy a bus ticket, or tell someone your phone number in Greek, you're using this number system. The challenge isn't just memorizing words—it's understanding that some Greek numbers change form based on the gender of the noun they describe. This lesson gives you the tools to handle numbers, prices, and quantities like a confident speaker.

Core Principles of Greek Numbers

Before diving into specific numbers, you need to understand the core principles that govern how Greek numbers behave. Unlike English, where numbers are mostly unchanging ("one book," "one car," "one house"), Greek numbers sometimes shift their endings to match the noun they accompany. Here are the foundational ideas you should keep in mind.

The Greek Number System at a Glance

The diagram below maps out Greek cardinal numbers from 0 to 1,000,000. Notice how the numbers 1–12 each have their own unique word, similar to English. Starting at 13, numbers become compound—built from tens plus units. The color coding highlights which numbers have gender-variable forms versus those that remain fixed across all genders.

As you can see, the vast majority of Greek numbers are fixed in form—they don't change regardless of the noun they modify. Only ένας/μία/ένα (1), τρεις/τρία (3), and τέσσερις/τέσσερα (4) require you to choose the correct gender form. Once you've memorized these three special cases and the basic pattern for building compound numbers, you can express any quantity in Greek.

How Greek Numbers Work — Gender, Case & Compounds

Gender Agreement for 1, 3, and 4

In Greek, every noun has a grammatical gender: masculine (αρσενικό), feminine (θηλυκό), or neuter (ουδέτερο). When you use the numbers 1, 3, or 4, the number must agree with the gender of the noun it modifies. This is much like how Spanish changes "uno" to "una" for feminine nouns, except Greek has three genders instead of two.

Building Compound Numbers

Greek compound numbers follow a simple additive pattern. You say the larger unit first, then the smaller, without any connecting word (no "and" like in some English dialects). For example, 25 is είκοσι πέντε (twenty five). For hundreds, the word for "hundred" changes form based on the number and gender: εκατό (100), διακόσιοι/διακόσιες/διακόσια (200), τριακόσιοι/τριακόσιες/τριακόσια (300), and so on. Thousands use χίλιοι/χίλιες/χίλια (1,000) with gender agreement, and multiples of thousand (2,000+) use the neuter plural: δύο χιλιάδες, τρεις χιλιάδες, etc.

Currency Expressions

The word ευρώ (evró) is neuter and indeclinable—it never changes form. Cents are called λεπτά (leptá), which is neuter plural. A price like €3,50 is read as τρία ευρώ και πενήντα λεπτά (three euros and fifty cents). The word και (ke, meaning "and") connects euros and cents. In casual speech, people often drop "λεπτά" and just say "τρία πενήντα."

Quantities, Measurements & Market Phrases

Knowing the number words is only half the battle. In real-life Greek conversations—at a bakery, a farmers' market, or a supermarket—you'll combine numbers with quantity words and measurement units. Let's explore the most common ones you'll encounter.

Worked Example — Ordering at a Greek Bakery

Let's walk through a realistic scenario. You're at a bakery (φούρνος) in Athens and you want to order three cheese pies and one spinach pie. The shopkeeper tells you the price. Let's build the entire conversation step by step.

Common Mistakes & How to Avoid Them

Learning Greek numbers comes with a few predictable stumbling blocks. English speakers especially tend to make certain errors because English numbers don't change based on gender or context. Let's identify the most common pitfalls so you can avoid them from the start.

Connecting to Advanced Greek — Ordinals, Fractions & Formal Register

Once you've mastered cardinal numbers and basic prices, the next level involves ordinal numbers (first, second, third…), fractions (a quarter, a third…), and formal register usage (such as dates, addresses, and official documents). The table below previews how cardinal numbers connect to these more advanced areas.

Don't worry about mastering all of these right now. The key takeaway is that the cardinal number system you're building in this lesson is the foundation for every number-related structure in Greek. Ordinals are built from the same roots (τρία → τρίτος), fractions use cardinals in their construction, and dates combine ordinals with genitive case. Solid mastery now makes all of these extensions much easier later.

Practice Problems

Lesson Summary