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Cornerstone · Grades 3–5 Keystones #1 24 April 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 24 April 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄11 + 3⁄11

    Answer: 6⁄11
  2. 2. Algebra Two-step equations

    Solve: 3x - 5 = 31

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

    Calculate the hypotenuse when a = 8cm and b = 7cm

    Answer: 10.63cm
  4. 4. Ratio Sharing in a ratio

    Divide 260 in the ratio 2:2:1

    Answer: 104, 104 and 52
  5. 5. Statistics Mean

    Find the mean of: 18, 15, 16, 8

    Answer: 14.25

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