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Cornerstone · Grades 3–5 Keystones #1 4 June 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 June 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 7⁄11 + 1⁄11

    Answer: 8⁄11
  2. 2. Algebra Two-step equations

    Solve: 4x + 12 = 52

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Divide 162 in the ratio 4:1:1

    Answer: 108, 27 and 27
  5. 5. Statistics Mean

    Calculate the mean of: 10, 9, 43, 7, 48, 44, 13, 31

    Answer: 25.6

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