Amount, Quantity and Number

There are slight differences between 'amount of', 'quantity of' and 'number of'

Amount of

Amount of is used for things you can’t measure. It is usually in front of a singular word.
I have a reasonable amount of work this week. Work – singular non-count word
He has a certain amount of respect for the sales team. Respect – singular non-count word

Quantity of

Quantity of is used for things that you can measure. It is usually used to refer to inanimate objects.
The police appropriated a large quantity of money after the raid.
The quantity of cars imported from Japan has increased. Cars – plural count word

Number of

Number of is usually used before a plural count noun. It can be used for both inanimate and animate objects.
A large number of tourists to Malta come from the continent.
The cargo of the ship that ran aground consisted of a large number of computer consoles.

Lesson by Tristan, teacher at EC Malta English school

Now complete the following with the correct phrase:

• 1. We are going to need a large _ paper next week because of the conference.
  
  amount of
  number of
  quantity of
  
  
• 2. They need to increase the _ meat consumed per person.
  
  amount of
  quantity of
  number of
  
  
• 3. I don’t need that much _ sleep.
  
  number of
  amount of
  quantity of
  
  
• 4. The company usually refuses a large _ of applicants every year.
  
  number of
  amaount of
  quantity of
  
  
• 5. I have a certain _ contempt for people like David.
  
  amount of
  number of
  quantity of
  
  
• 6. We have tackled a huge _ work this week.
  
  amount of
  number of
  quantity of