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Cornerstone · Grades 3–5 Keystones #1 2 October 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 October 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 3⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 8x - 14 = 58

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Share 63 in the ratio 3:4

    Answer: 27 and 36
  5. 5. Statistics Mean

    Calculate the mean of: 32, 7, 25, 47, 20, 36. Give your answer to 2 decimal places

    Answer: 27.83

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