Fractions and percentages of amounts · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.

The word 'of' means multiply

Mathematics · Fractions · ages 11-12
Name ______________________   Date ____________

  1. What is 3/4 × 2/5?

    • 5/9
    • 3/10
    • 5/20
    • 6/9

  2. What does 'of' mean in a maths problem like '1/2 of 8'?

    • Add
    • Multiply
    • Subtract

  3. To find a percentage of an amount, you first change the percentage into a decimal.

    Circle one:   True   False

  4. Which calculation matches '3/4 of 60'?

    • 3/4 + 60
    • 3/4 × 60
    • 60 ÷ 3/4

  5. Which whole number makes this true: 3/12 × __ = 1?

    • 3
    • 4
    • 6
    • 12

  6. What is 6 × 3/4? Give your answer as a decimal.

    Answer: ______________

  7. A board is 2 1/2 meters long. You need 4 boards. How many meters of wood is that in total?

    Answer: ______________

  8. A recipe uses 2/3 of a 12 ounce bag of chocolate chips. How many ounces is that?

    Answer: ______________

  9. A £80 jacket is reduced by 25%. What is the sale price?

    • £100
    • £20
    • £60

  10. Which of these products is the smallest?

    • 1/9 × 2/8
    • 9/1 × 8/2
    • 1/2 × 9/8
    • 8/9 × 1/2
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Answer key

For grown-ups. Fold this page away before handing over the rest.

The word 'of' means multiply W1-mt_J339bO7qLe-s1

  1. 3/10 · Multiply the top numbers and the bottom numbers, then simplify what you get.
  2. Multiply · 'Of' is a hidden multiply sign. 1/2 of 8 means 1/2 × 8.
  3. True · Yes. Divide the percentage by 100 to get a decimal, then multiply it by the amount.
  4. 3/4 × 60 · 'Of' means multiply, so 3/4 of 60 is 3/4 × 60.
  5. 4 · Simplify the fraction first, then ask what number undoes it.
  6. 4.5 · A whole number times a fraction means that many copies of the fraction.
  7. 10 · Change the mixed number to an improper fraction before you multiply.
  8. 8 · The word of is a signal to multiply: 2/3 of 12 means 2/3 × 12.
  9. £60 · First find 25% of £80, which is £20. Then subtract: £80 − £20 = £60.
  10. 1/9 × 2/8 · Big denominators shrink a fraction, so products built from big bottoms stay small.
Worksheet · LightMySky