Cambridge Assessment Mathematics: Expressions and Formulas Challenge
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Questions and Answers

Which type of decimal is 0.5?

  • Recurring decimal
  • Terminating decimal (correct)
  • Improper fraction
  • Mixed number
  • What is the decimal equivalent of $\frac{4}{9}$?

  • 0.7
  • 0.5
  • 0.9 (correct)
  • 0.4
  • Looking at the fraction cards provided, do you think the fraction $\frac{1}{3}$ is a terminating or recurring decimal?

  • Terminating decimal
  • Mixed number
  • Recurring decimal (correct)
  • Unit fraction
  • When converting fractions to decimals, what does a recurring decimal indicate?

    <p>The fraction has a repeating pattern in its decimal form</p> Signup and view all the answers

    If $0.74$ is converted to a fraction, what type of fraction would it be?

    <p>Improper fraction</p> Signup and view all the answers

    In the context of decimals and fractions, what is the significance of a bar over a digit in a decimal representation?

    <p>It indicates that the digit is a repeating pattern</p> Signup and view all the answers

    When x = -4, which expression has a different value compared to the rest?

    <p>5x + 5</p> Signup and view all the answers

    For which pair of expressions, x values would make them equal?

    <p>3x + 1 and 3x^2 + 1</p> Signup and view all the answers

    What is the value of D when w = 2.5 and p = 6 in the formula D = wp + 4?

    <p>D = 17</p> Signup and view all the answers

    In the distance formula s = ut + at^2/2, what is the distance traveled when u = 0, a = 6, and t = 5?

    <p>$150$</p> Signup and view all the answers

    For a running object with u = 30, a = -4, and t = 10, what is the distance traveled?

    <p>$240$</p> Signup and view all the answers

    In the formula s = ut + at^2/2, what does at^2 mean?

    <p>$\frac{1}{2}(a)(t^2)$</p> Signup and view all the answers

    Which distance is written incorrectly by Frank?

    <p>32 km</p> Signup and view all the answers

    Is Sarina correct in stating that the longest distance she ran is almost ten times the shortest distance she ran?

    <p>No, she is incorrect because the longest distance is not even close to ten times the shortest distance.</p> Signup and view all the answers

    If Frank runs in a park with a circumference of 250 meters and Sarina runs in a park with a circumference of 400 meters, who do you think runs in each park?

    <p>Frank runs in the park with a circumference of 250 m, and Sarina runs in the park with a circumference of 400 m.</p> Signup and view all the answers

    Which of these decimal sequences is correct?

    <p>$2000 g, 75.75 kg, 5550 g, 3 kg$</p> Signup and view all the answers

    If Sarina runs 3250 meters and Frank runs 1.2 kilometers, who ran a longer distance?

    <p>Sarina</p> Signup and view all the answers

    If Frank's 0.8 km is incorrectly converted to 800 m, how should it be correctly converted?

    <p><em>720 m</em></p> Signup and view all the answers

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