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Cornerstone · Grades 3–5 Keystones #1 30 July 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 30 July 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄12 + 1⁄12

    Answer: 7⁄12
  2. 2. Algebra Two-step equations

    Solve: 4x + 15 = 47

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

    Calculate the hypotenuse when a = 8cm and b = 10cm

    Answer: 12.81cm
  4. 4. Ratio Sharing in a ratio

    Share 24 in the ratio 2:1

    Answer: 16 and 8
  5. 5. Statistics Mean

    Calculate the mean of: 9, 46, 23, 7, 26, 22, 24

    Answer: 22.4

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