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Quiz Chapter 3: Squares, Square Roots, Cubes and Cube Roots

10 questions · Form 1 Mathematics Bab 3: Squares, Square Roots, Cubes and Cube Roots

10 questions · plays in fullscreen

Full Question List & Answer Key

Prefer reading to quizzing? All 10 questions are listed below with the answer and explanation under each one.

1. Evaluate: √(2536)

  1. 56
  2. 256
  3. 536
  4. 65
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Answer: A

√(2536) = √25 / √36 = 56.

2. Calculate the value of 0.42.

  1. 0.16
  2. 1.6
  3. 0.08
  4. 0.8
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Answer: A

0.4 x 0.4 = 0.16.

3. Evaluate: √100 - 23

  1. 2
  2. 4
  3. -2
  4. 18
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Answer: A

√100 = 10 and 23 = 8. Thus, 10 - 8 = 2.

4. Calculate: 32 + ∛(27)

  1. 12
  2. 15
  3. 18
  4. 9
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Answer: A

32 = 9 and ∛(27) = 3. Thus, 9 + 3 = 12.

5. Find the value of (∛(125))2.

  1. 25
  2. 15
  3. 5
  4. 125
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Answer: A

∛(125) = 5. Then 52 = 25.

6. Which of the following statements is TRUE?

  1. The cube root of a negative number is always negative
  2. The square root of any number can be negative in standard principal root evaluation
  3. All even numbers are perfect squares
  4. The square of a negative number is negative
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Answer: A

By definition, the product of three negative numbers remains negative, so ∛(-a) is always negative.

7. Which of the following is a perfect cube?

  1. 125
  2. 16
  3. 36
  4. 100
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Answer: A

125 = 5 x 5 x 5 = 53, making 125 a perfect cube.

8. Calculate the value of √144.

  1. 12
  2. 14
  3. 72
  4. 16
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Answer: A

12 x 12 = 144, so √144 = 12.

9. Calculate: √0.09 + ∛(0.027)

  1. 0.6
  2. 0.06
  3. 0.33
  4. 0.9
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Answer: A

√0.09 = 0.3 and ∛(0.027) = 0.3. Thus, 0.3 + 0.3 = 0.6.

10. Evaluate: √(1 916)

  1. 54
  2. 34
  3. 45
  4. 1 34
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Answer: A

Convert to improper fraction: 1 916 = 2516. √(2516) = 54.

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