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Fractions of Whole Numbers

Grade 4 · Building confidence · 12 questions · Version PG-1S6V686-F2ZU

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1.What is 3/5 of 30?
2.What is 2/4 of 52?
3.What is 1/5 of 30?
4.What is 4/5 of 25?
5.What is 7/8 of 16?
6.What is 3/5 of 15?
7.What is 5/8 of 56?
8.What is 3/5 of 50?
9.What is 5/8 of 40?
10.What is 2/8 of 16?
11.What is 3/10 of 40?
12.What is 1/2 of 12?

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 18
  1. What is 3/5 of 30?18
  2. What is 2/4 of 52?26
  3. What is 1/5 of 30?6
  4. What is 4/5 of 25?20
  5. What is 7/8 of 16?14
  6. What is 3/5 of 15?9
  7. What is 5/8 of 56?35
  8. What is 3/5 of 50?30
  9. What is 5/8 of 40?25
  10. What is 2/8 of 16?4
  11. What is 3/10 of 40?12
  12. What is 1/2 of 12?6

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.