Tens and compound numbers (dertig, veertig...)

The Tens (-tig)

Just like twintig (twenty), the remaining tens end in -tig. Most are formed by adding -tig directly to the single digit, though you will notice a few minor spelling shifts for dertig (thirty), veertig (forty), and tachtig (eighty).

One hundred is simply honderd.

Note: When talking about prices, the word *euro generally stays singular in Dutch, even after a plural number.*

The book is thirty euros.
Het boek is dertig euro.
My father is seventy and my mother is eighty.
Mijn vader is zeventig en mijn moeder is tachtig.
The hotel has ninety beds and one hundred chairs.
Het hotel heeft negentig bedden en honderd stoelen.

Compound Numbers

This is where Dutch numbers get interesting! For numbers between 21 and 99, Dutch reads "backwards" compared to English. You say the single unit first, add en (and), and then the ten.

For example, thirty-four is literally "four-and-thirty": vier + en + dertig = vierendertig.

Notice that the entire number is always written together as one single word.

My sister is thirty-four.
Mijn zus is vierendertig.
He has forty-five books.
Hij heeft vijfenveertig boeken.
Fifty-one students are learning Dutch.
Eenenvijftig studenten leren Nederlands.
We pay ninety-six euros.
We betalen zesennegentig euro.

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