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Cornerstone · Grades 3–5 Keystones #1 27 August 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 August 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄4 + 5⁄8

    Answer: 9⁄8
  2. 2. Algebra Two-step equations

    Solve: 2x - 12 = 14

    Answer: x = 13
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 12cm

    Answer: 16.28cm
  4. 4. Ratio Sharing in a ratio

    Share 44 in the ratio 1:3

    Answer: 11 and 33
  5. 5. Statistics Mean

    Calculate the mean of: 25, 43, 50, 7, 35, 15, 23

    Answer: 28.3

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