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Math 4 · Unit 7: Fractions · Cambridge Primary Maths Stage 4

7.2 Fractions as operators

16 questions · e.g. There are 40 pages. Bruno reads 1/5. How many are left?

Practice

Questions

  1. 1. Worked example: there are 40 pages in Bruno's book. He reads 1/5 of the book on Monday. How many pages does he have left to read?

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  2. 2. Here are 15 counters. Which picture has a ring around 1/5 of them?

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  3. 3. What is one sixth of 24?

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  4. 4. Draw a line from each calculation to the correct box.

    1/2 of 201/5 of 601/4 of 321/3 of 30Answer less than 10Answer equal to 10Answer more than 10
    • 1/2 of 20
    • 1/5 of 60
    • 1/4 of 32
    • 1/3 of 30
    • Answer less than 10
    • Answer equal to 10
    • Answer equal to 10
    • Answer more than 10
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  5. 5. Leo takes $40 on a shopping trip. He spends 1/5 of his money. How much money does he spend?

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  6. 6. Use this strip to help you find 1/7 of 56. Drag the numbers into the boxes.

    561/7 of 56 = 56 ÷=

    Fill the blanks with these.

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  7. 7. Jamil has 16 cards. He gives a quarter of his cards to his friend. How many cards has Jamil got left?

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  8. 8. Find 1/3 of 21 cm.

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  9. 9. What is the number in the final box? Each number in this sequence is a quarter of the number before.

    51212832
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  10. 10. Find the odd one out: 1/3 of 6, 1/4 of 8, 1/5 of 15, 1/6 of 12

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  11. 11. You divide this rectangle into four parts that do not overlap: 1/2, 1/4, 1/6 and 1/12 of the rectangle. How many squares are in each part?

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  12. 12. Parveen has a packet of 20 balloons. 1/4 of the balloons are red. How many balloons are not red?

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  13. 13. Nasreen has a packet of 5 orange beads, 5 red beads and 10 blue beads. She says, 'Half the beads are blue.' Is she correct?

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  14. 14. Look at this pattern. What are the next three calculations?

    1/4 of 4 = 11/4 of 8 = 21/4 of 12 = 3
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  15. 15. What is the missing number? 1/3 of 30 = 1/2 of ☐

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  16. 16. Hassan says, 'I would rather have 1/3 of $36 than 1/4 of $60 because 1/3 is bigger than 1/4.' Do you agree with Hassan?

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