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Cornerstone · Grades 3–5 Keystones #1 31 July 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 31 July 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄4 + 1⁄5

    Answer: 9⁄20
  2. 2. Algebra Two-step equations

    Solve: 8x - 6 = 58

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.56cm
  4. 4. Ratio Sharing in a ratio

    Share 95 in the ratio 2:3

    Answer: 38 and 57
  5. 5. Statistics Mean

    Find the mean of: 13, 13, 14, 4, 16

    Answer: 12

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