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 (C)</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 (B)</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 (A)</p> Signup and view all the answers

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

<p>5x + 5 (D)</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 (A)</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 (C)</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>$150$ (A)</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>$240$ (B)</p> Signup and view all the answers

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

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

Which distance is written incorrectly by Frank?

<p>32 km (A)</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. (C)</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. (D)</p> Signup and view all the answers

Which of these decimal sequences is correct?

<p>$2000 g, 75.75 kg, 5550 g, 3 kg$ (A)</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 (C)</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> (D)</p> Signup and view all the answers

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