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

Five GCSE retrieval questions · 7 May 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄10 + 7⁄10

    Answer: 9⁄10
  2. 2. Algebra Two-step equations

    Solve: 6x + 15 = 33

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

    Calculate the hypotenuse when a = 6cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 10.82cm
  4. 4. Ratio Sharing in a ratio

    Share 48 in the ratio 2:1

    Answer: 32 and 16
  5. 5. Statistics Mean

    Calculate the mean of: 37, 37, 5, 47, 38, 15. Give your answer to 2 decimal places

    Answer: 29.83

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