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Cornerstone · Grades 3–5 Keystones #1 16 April 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 16 April 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄12 + 3⁄12

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 2x - 6 = 14

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 14.42cm
  4. 4. Ratio Sharing in a ratio

    Divide 55 in the ratio 1:3:1

    Answer: 11, 33 and 11
  5. 5. Statistics Mean

    Calculate the mean of: 29, 23, 26, 6, 19, 14, 16, 50. Give your answer to 2 decimal places

    Answer: 22.88

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