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A1

Tens and one hundred Exercises

About this lesson

Tens and one hundred · A1. thirty = the number 30; forty = the number 40; fifty = the number 50

Learn essential meanings, then practise choosing the right word. This level is an editorial guide.

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Vocabulary

Learning cards

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thirty
thirty
A1
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thirty

thirty

the number 30

In a sentence

Our room number is thirty.

Our room number is thirty.

Useful combinations
number thirtythirty people

Word forms & family

Fixed expression

Similar meanings & paraphrases

No common direct equivalent for this sense.

These match this sense. Word families can change meaning; near meanings are not always interchangeable.

The word “thirty” represents 30. Keep the spelling and value together.

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A little clarity first

thirty · forty · fifty

thirty = the number 30; forty = the number 40; fifty = the number 50

Our room number is thirty.

sixty · seventy · eighty

sixty = the number 60; seventy = the number 70; eighty = the number 80

Our room number is sixty.

ninety · hundred

ninety = the number 90; hundred = the number 100

Our room number is ninety.

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Questions
01 / 16D01Save it to find it in My collection.

Which English word represents 30?

Choose the best answer.

Your answer
1 / 16

Your learning route

01
Step 1 · Warm-up

Warm-up

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02
Step 2 · Build the skill

thirty · forty · fifty

0/1

thirty = the number 30; forty = the number 40; fifty = the number 50

Our room number is thirty.
03
Step 3 · Build the skill

sixty · seventy · eighty

0/3

sixty = the number 60; seventy = the number 70; eighty = the number 80

Our room number is sixty.
04
Step 4 · Build the skill

ninety · hundred

0/2

ninety = the number 90; hundred = the number 100

Our room number is ninety.
05
Step 5 · Meaning & use review

Meaning & use review

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Practice notes in this unit

Make mistakes useful.

Review the meaning and the explanation, then try another question about the same word use.

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No practice notes yet. Try a short warm-up.

Lesson map

Tens and one hundred

A1
thirty

thirty

thirty

forty

forty

forty

fifty

fifty

fifty

sixty

sixty

sixty

seventy

seventy

seventy

eighty

eighty

eighty

ninety

ninety

ninety

hundred

hundred

hundred

Questions & answers

Opening an answer records help for that question.

D01 · Warm-up

Which English word represents 30?

Choose the best answer.

  1. forty
  2. thirty
  3. sixty
  4. fifty
Answer & explanation
thirty

“thirty” means thirty. The clue is “30”.

R01 · Meaning & use review

The room sign shows 30. Complete “room ___”.

Choose the best answer.

  1. sixty
  2. forty
  3. thirty
  4. fifty
Answer & explanation
thirty

“thirty” means thirty. The clue is “room 30”.

D02 · Warm-up

Which English word represents 40?

Choose the best answer.

  1. fifty
  2. seventy
  3. forty
  4. sixty
Answer & explanation
forty

“forty” means forty. The clue is “40”.

R02 · Meaning & use review

The room sign shows 40. Complete “room ___”.

Choose the best answer.

  1. sixty
  2. forty
  3. fifty
  4. seventy
Answer & explanation
forty

“forty” means forty. The clue is “room 40”.

P01 · Build the skill

Which English word represents 50?

Choose the best answer.

  1. eighty
  2. fifty
  3. seventy
  4. sixty
Answer & explanation
fifty

“fifty” means fifty. The clue is “50”.

R03 · Meaning & use review

The room sign shows 50. Complete “room ___”.

Choose the best answer.

  1. fifty
  2. eighty
  3. seventy
  4. sixty
Answer & explanation
fifty

“fifty” means fifty. The clue is “room 50”.

P02 · Build the skill

Which English word represents 60?

Choose the best answer.

  1. sixty
  2. eighty
  3. seventy
  4. ninety
Answer & explanation
sixty

“sixty” means sixty. The clue is “60”.

R04 · Meaning & use review

The room sign shows 60. Complete “room ___”.

Choose the best answer.

  1. ninety
  2. eighty
  3. sixty
  4. seventy
Answer & explanation
sixty

“sixty” means sixty. The clue is “room 60”.

P03 · Build the skill

Which English word represents 70?

Choose the best answer.

  1. eighty
  2. hundred
  3. seventy
  4. ninety
Answer & explanation
seventy

“seventy” means seventy. The clue is “70”.

R05 · Meaning & use review

The room sign shows 70. Complete “room ___”.

Choose the best answer.

  1. seventy
  2. ninety
  3. hundred
  4. eighty
Answer & explanation
seventy

“seventy” means seventy. The clue is “room 70”.

P04 · Build the skill

Which English word represents 80?

Choose the best answer.

  1. ninety
  2. eighty
  3. thirty
  4. hundred
Answer & explanation
eighty

“eighty” means eighty. The clue is “80”.

R06 · Meaning & use review

The room sign shows 80. Complete “room ___”.

Choose the best answer.

  1. thirty
  2. ninety
  3. hundred
  4. eighty
Answer & explanation
eighty

“eighty” means eighty. The clue is “room 80”.

P05 · Build the skill

Which English word represents 90?

Choose the best answer.

  1. forty
  2. thirty
  3. ninety
  4. hundred
Answer & explanation
ninety

“ninety” means ninety. The clue is “90”.

X01 · Meaning & use review

The room sign shows 90. Complete “room ___”.

Choose the best answer.

  1. ninety
  2. forty
  3. hundred
  4. thirty
Answer & explanation
ninety

“ninety” means ninety. The clue is “room 90”.

P06 · Build the skill

Which word completes “one ___” to name 100?

Choose the best answer.

  1. thirty
  2. forty
  3. hundred
  4. fifty
Answer & explanation
hundred

“hundred” means hundred. The clue is “100”.

X02 · Meaning & use review

The room sign shows 100. Complete “room one ___”.

Choose the best answer.

  1. fifty
  2. hundred
  3. forty
  4. thirty
Answer & explanation
hundred

“hundred” means hundred. The clue is “room 100”.

A helpful next step