Fractions Of Amounts (Year 3)

Find a fraction of a quantity by dividing and multiplying.

The questions below are generated to match the National Curriculum for Year 3 and get harder as you progress from Rookie to Guru.

Worked examples

RookieRead and interpret directly.

There are 12 books. 1/2 of them are chosen. How many is that?

  • 6
  • 24
  • 12

Answer: 6. 1/2 of 12: divide by 2 then multiply by 1. 12 ÷ 2 = 6, then × 1 = 6.

ProCompare and infer.

There are 21 marbles. 2/3 of them are chosen. How many is that?

  • 14
  • 7
  • 11
  • 63

Answer: 14. 2/3 of 21: divide by 3 then multiply by 2. 21 ÷ 3 = 7, then × 2 = 14.

GuruMulti-step reasoning.

A group has 30 pupils. 3/5 of them choose apples and the rest do not. How many do NOT?

  • 150
  • 18
  • 30
  • 12

Answer: 12. 3/5 of 30 = 18 did, so 30 − 18 = 12 did not.

Related skills

Frequently asked questions

What is fractions of amounts?
Find a fraction of a quantity by dividing and multiplying.
How can my child practise fractions of amounts at home?
Work through the examples below, then start a free adaptive session. Northstar adjusts the difficulty automatically and tracks mastery over time.

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