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Tens and Hundreds

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Grammar Rule in 30 Seconds

Norwegian tens end in '-ti' and hundreds use 'hundre', making counting straightforward once you learn the base patterns.

  • Tens (20-90) end in '-ti': 20 is 'tjue', 30 is 'tretti'.
  • Hundreds use 'hundre': 100 is 'ett hundre' or just 'hundre'.
  • Combine them naturally: 120 is 'hundre og tjue'.
Base + ti = Tens | [Number] + hundre = Hundreds

Meanings

The system for expressing multiples of ten and one hundred in Norwegian.

1

Counting Tens

Expressing values from 20 to 90.

“Jeg er tjue år gammel.”

“Bussen koster førti kroner.”

Tens and Hundreds Formation

Number Norwegian Pattern
20 tjue to + ti
30 tretti tre + ti
40 førti fire + ti
50 femti fem + ti
60 seksti seks + ti
70 sytti syv + ti
80 åtti åtte + ti
90 nitti ni + ti
100 hundre 100
200 to hundre 2 + hundre

Reference Table

Reference table for Tens and Hundreds
Form Structure Example
Tens Base + ti 40 = førti
Hundreds Digit + hundre 300 = tre hundre
Combined Hundred + og + Ten 120 = hundre og tjue
Question Hvor mye er...? Hvor mye er hundre og ti?
Negative Ikke + number Ikke hundre
Short Answer Bare [number] Bare tretti

Spectre de formalité

Formel
Prisen er ett hundre og tjue kroner.

Prisen er ett hundre og tjue kroner. (Shopping)

Neutre
Det koster hundre og tjue kroner.

Det koster hundre og tjue kroner. (Shopping)

Informel
Det er hundre og tjue.

Det er hundre og tjue. (Shopping)

Argot
Hundre og tjue spenn.

Hundre og tjue spenn. (Shopping)

Number Building Blocks

100

Tens

  • tjue 20
  • tretti 30
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Exemples par niveau

1

Jeg er tjue år.

I am twenty years old.

2

Det koster tretti kroner.

It costs thirty kroner.

3

Jeg har hundre kroner.

I have one hundred kroner.

4

Bussen går om førti minutter.

The bus leaves in forty minutes.

1

Hundre og tjue passasjerer.

One hundred and twenty passengers.

2

Vi er åtti personer her.

We are eighty people here.

3

Det er hundre og seksti sider.

It is one hundred and sixty pages.

4

Prisen er hundre og ti.

The price is one hundred and ten.

1

Han løp hundre og femti meter.

He ran one hundred and fifty meters.

2

Det koster to hundre og tretti.

It costs two hundred and thirty.

3

Vi ventet i nitti minutter.

We waited for ninety minutes.

4

Tre hundre og førti deltakere.

Three hundred and forty participants.

1

Budsjettet er på fem hundre og sytti tusen.

The budget is five hundred and seventy thousand.

2

Det er hundre og åtti grader.

It is one hundred and eighty degrees.

3

Vi har seks hundre og tjue enheter.

We have six hundred and twenty units.

4

Det er ni hundre og nitti.

It is nine hundred and ninety.

1

Avstanden er fire hundre og femti kilometer.

The distance is four hundred and fifty kilometers.

2

Vi produserer åtte hundre og seksti enheter.

We produce eight hundred and sixty units.

3

Det er syv hundre og tretti dager.

It is seven hundred and thirty days.

4

Prisen steg til ni hundre og tyve.

The price rose to nine hundred and twenty.

1

Det er hundre og førti-to år siden.

It is one hundred and forty-two years ago.

2

Vi har to hundre og femti-fem medlemmer.

We have two hundred and fifty-five members.

3

Det utgjør tre hundre og seksti-tre dager.

It amounts to three hundred and sixty-three days.

4

Vi forventer fem hundre og nitti-ni.

We expect five hundred and ninety-nine.

Facile à confondre

Tens and Hundreds vs Tretti vs Tredve

Learners think they are different numbers.

Tens and Hundreds vs Sytti vs Seksti

They sound similar.

Tens and Hundreds vs Hundre vs Ett hundre

When to use 'ett'.

Erreurs courantes

✗

firti

✓

førti

Spelling error, it is førti.
✗

hundre tjue

✓

hundre og tjue

Missing the 'og'.
✗

tredve

✓

tretti

Tredve is dialectal, tretti is standard.
✗

seksti

✓

seksti

Correct, but often confused with sytti.
✗

to hundre tjue

✓

to hundre og tjue

Missing 'og'.
✗

sytti

✓

søtti

Dialectal variation.
✗

hundre-og-tjue

✓

hundre og tjue

No hyphens needed.
✗

ett hundre og tjue

✓

hundre og tjue

Ett is often redundant.
✗

tretti-to

✓

trettito

No hyphen.
✗

nitti

✓

nitti

Correct, but often confused with åtti.
✗

hundre og en

✓

hundre og en

Correct, but ensure gender agreement if needed.
✗

to hundre og en

✓

to hundre og en

Correct.
✗

ni hundre og nitti

✓

ni hundre og nitti

Correct.
✗

hundre og ti

✓

hundre og ti

Correct.

Structures de phrases

Det koster ___ kroner.

Jeg er ___ år gammel.

Vi er ___ personer.

Det er ___ kilometer til byen.

Real World Usage

Shopping constant

Det koster hundre kroner.

Travel very common

Bussen går om tretti minutter.

Social Media common

50% rabatt!

Job Interview occasional

Jeg har førti års erfaring.

Food Delivery common

Det er hundre og tjue kroner.

Texting constant

Møtes om 20 min?

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💡

Practice Out Loud

Say the numbers out loud to get used to the rhythm.
⚠️

Watch the 'og'

Don't forget 'og' between hundreds and tens.
🎯

Use Digits

In writing, digits are often used instead of words.
💬

Dialect Matters

Be aware that 'tretti' and 'tredve' are both common.

Smart Tips

Always say 'og' before the last part of a number.

Hundre tjue → Hundre og tjue

Use digits for clarity.

Det koster tretti kroner → Det koster 30 kr

Drop 'ett' in 'ett hundre'.

Ett hundre og ti → Hundre og ti

Use 'tretti' as it is the most standard.

Jeg er tredve → Jeg er tretti

Prononciation

tretti / tredve

Tretti vs Tredve

Tretti is standard, Tredve is common in speech.

Rising

Hundre og tjue?

Clarification or question

Mémorise-le

Moyen mnémotechnique

Think of 'ti' as 'ten' (a tiny bit similar). If you have 2 tens, you have 'tjue'.

Association visuelle

Imagine a giant '100' (hundre) with a small '20' (tjue) riding on its back, connected by a bridge called 'og'.

Rhyme

Tjue, tretti, førti, femti, seksti, sytti, åtti, nitti, hundre er det vi vil ha, å telle tall er kjempebra!

Story

I went to the store with 100 kroner. I bought 20 apples. I had 80 left. I told the clerk: 'Hundre minus tjue er åtti'.

Word Web

tjuetrettiførtifemtihundreog

Défi

Count from 20 to 100 by tens out loud in 30 seconds.

Notes culturelles

In Oslo, 'tretti' is the standard pronunciation.

Bergen speakers often use 'tredve' more frequently.

Pronunciation of 'sytti' can sound like 'søtti'.

The Norwegian number system is Germanic in origin.

Amorces de conversation

“

Hvor mye koster dette?

“

Hvor gammel er du?

“

Hvor mange personer er dere?

“

Hvor langt er det til Oslo?

Sujets d'écriture

Write about your age and the age of your friends.
Describe a shopping trip.
Write about a travel distance.
Discuss a budget for a project.
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Test Yourself

Fill in the missing number.

20 is ___.

✓ Correct! ✗ Not quite. Correct answer: tjue
20 is tjue.
Choose the correct spelling. Choix multiple

Which is 40?

✓ Correct! ✗ Not quite. Correct answer: førti
40 is spelled førti.
Fix the sentence. Error Correction

Find and fix the mistake:

Det koster hundre tjue kroner.

✓ Correct! ✗ Not quite. Correct answer: Det koster hundre og tjue kroner.
Need 'og'.
Change to hundreds. Sentence Transformation

Change 20 to 200.

✓ Correct! ✗ Not quite. Correct answer: to hundre
200 is to hundre.
Is this true? True False Rule

30 is tretti.

✓ Correct! ✗ Not quite. Correct answer: True
30 is tretti.
Complete the dialogue. Dialogue Completion

A: Hvor mye? B: ___.

✓ Correct! ✗ Not quite. Correct answer: Hundre kroner
Standard price format.
Build the sentence. Sentence Building

hundre / og / tjue / er / Det

✓ Correct! ✗ Not quite. Correct answer: Det er hundre og tjue.
Correct word order.
Match the number. Match Pairs

Match each item on the left with its pair on the right:

✓ Correct! ✗ Not quite. Correct answer: femti
50 is femti.

Score: /8

Exercices pratiques

8 exercises
Fill in the missing number.

20 is ___.

✓ Correct! ✗ Not quite. Correct answer: tjue
20 is tjue.
Choose the correct spelling. Choix multiple

Which is 40?

✓ Correct! ✗ Not quite. Correct answer: førti
40 is spelled førti.
Fix the sentence. Error Correction

Find and fix the mistake:

Det koster hundre tjue kroner.

✓ Correct! ✗ Not quite. Correct answer: Det koster hundre og tjue kroner.
Need 'og'.
Change to hundreds. Sentence Transformation

Change 20 to 200.

✓ Correct! ✗ Not quite. Correct answer: to hundre
200 is to hundre.
Is this true? True False Rule

30 is tretti.

✓ Correct! ✗ Not quite. Correct answer: True
30 is tretti.
Complete the dialogue. Dialogue Completion

A: Hvor mye? B: ___.

✓ Correct! ✗ Not quite. Correct answer: Hundre kroner
Standard price format.
Build the sentence. Sentence Building

hundre / og / tjue / er / Det

✓ Correct! ✗ Not quite. Correct answer: Det er hundre og tjue.
Correct word order.
Match the number. Match Pairs

Match 50.

✓ Correct! ✗ Not quite. Correct answer: femti
50 is femti.

Score: /8

FAQ (8)

No, it's a common dialectal variant of 'tretti'.

Yes, always between hundreds and tens/units.

You can say 'hundre' or 'ett hundre'.

No, they are written in lowercase.

Only 'en/ei/ett' for 1, but others are neutral.

Yes, in most contexts digits are preferred.

Both are used depending on the region.

That is 'tusen'.

Scaffolded Practice

1

1

2

2

3

3

4

4

Mastery Progress

Needs Practice

Improving

Strong

Mastered

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In Other Languages

German high

zwanzig, dreißig, hundert

German uses 'und' differently.

French moderate

vingt, trente, cent

French is much more complex.

Spanish moderate

veinte, treinta, cien

Spanish uses 'y' for units.

Japanese low

nijū, sanjū, hyaku

Japanese is completely different.

Arabic low

ishrun, thalathun, mi'a

Arabic is non-Germanic.

Chinese low

ershi, sanshi, yibai

Chinese has no conjugation.

Learning Path

Prerequisites

Previous
Numbers 0-20

Related Grammar Rules

A0

Numbers 0-20
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