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Cornerstone · Grades 3–5 Keystones #1 28 March 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 28 March 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄8 + 1⁄8

    Answer: 5⁄8
  2. 2. Algebra Two-step equations

    Solve: 5x + 10 = 70

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 8.54cm
  4. 4. Ratio Sharing in a ratio

    Divide 144 in the ratio 4:1:4

    Answer: 64, 16 and 64
  5. 5. Statistics Mean

    Calculate the mean of: 34, 46, 14, 40, 31, 38. Give your answer to 2 decimal places

    Answer: 33.83

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