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Fractions of Whole Numbers

Grade 4 · Stretch challenge · 12 questions · Version PG-436QAX-XSC1

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1.What is 2/4 of 28?
2.What is 7/8 of 32?
3.What is 5/6 of 42?
4.What is 1/3 of 12?
5.What is 8/10 of 50?
6.What is 1/2 of 58?
7.What is 7/8 of 56?
8.What is 1/2 of 20?
9.What is 2/6 of 12?
10.What is 6/8 of 56?
11.What is 9/10 of 40?
12.What is 2/5 of 55?

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 13
  1. What is 2/4 of 28?14
  2. What is 7/8 of 32?28
  3. What is 5/6 of 42?35
  4. What is 1/3 of 12?4
  5. What is 8/10 of 50?40
  6. What is 1/2 of 58?29
  7. What is 7/8 of 56?49
  8. What is 1/2 of 20?10
  9. What is 2/6 of 12?4
  10. What is 6/8 of 56?42
  11. What is 9/10 of 40?36
  12. What is 2/5 of 55?22

Worked example

3/4 of 20 = 15. Divide 20 by 4, then multiply 5 by 3.

Common mistake

Dividing by the numerator instead of the denominator.

Helpful hint

Divide by the bottom number, multiply by the top number.