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Fractions of Whole Numbers

Grade 4 · Building confidence · 12 questions · Version PG-1OTKI5K-F2ZU

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1.What is 1/3 of 18?
2.What is 6/8 of 16?
3.What is 1/2 of 16?
4.What is 1/2 of 22?
5.What is 1/2 of 40?
6.What is 4/5 of 30?
7.What is 8/10 of 40?
8.What is 1/3 of 27?
9.What is 4/8 of 56?
10.What is 1/2 of 36?
11.What is 1/6 of 30?
12.What is 1/4 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 7
  1. What is 1/3 of 18?6
  2. What is 6/8 of 16?12
  3. What is 1/2 of 16?8
  4. What is 1/2 of 22?11
  5. What is 1/2 of 40?20
  6. What is 4/5 of 30?24
  7. What is 8/10 of 40?32
  8. What is 1/3 of 27?9
  9. What is 4/8 of 56?28
  10. What is 1/2 of 36?18
  11. What is 1/6 of 30?5
  12. What is 1/4 of 12?3

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.