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Cornerstone · Grades 3–5 Keystones #1 11 August 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 11 August 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄8 + 3⁄8

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 3x - 14 = 1

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 14.32cm
  4. 4. Ratio Sharing in a ratio

    Share 60 in the ratio 3:1

    Answer: 45 and 15
  5. 5. Statistics Mean

    Calculate the mean of: 32, 26, 30, 22, 30, 20, 37. Give your answer to 2 decimal places

    Answer: 28.14

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