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Cornerstone · Grades 3–5 Keystones #1 17 April 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 17 April 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄3 + 5⁄7

    Answer: 29⁄21
  2. 2. Algebra Two-step equations

    Solve: 4x + 10 = 54

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 9cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 15.81cm
  4. 4. Ratio Sharing in a ratio

    Share 70 in the ratio 4:3

    Answer: 40 and 30
  5. 5. Statistics Mean

    Calculate the mean of: 30, 46, 27, 16, 22, 30, 16. Give your answer to 2 decimal places

    Answer: 26.71

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