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Cornerstone · Grades 3–5 Keystones #1 18 April 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 April 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 6⁄7 + 1⁄4

    Answer: 31⁄28
  2. 2. Algebra Two-step equations

    Solve: 5x + 3 = 53

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

    Calculate the hypotenuse when a = 5cm and b = 12cm

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

    Share 27 in the ratio 1:2

    Answer: 9 and 18
  5. 5. Statistics Mean

    Calculate the mean of: 50, 14, 50, 36, 28, 34. Give your answer to 2 decimal places

    Answer: 35.33

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