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Cornerstone · Grades 3–5 Keystones #1 17 August 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 17 August 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄7 + 1⁄4

    Answer: 27⁄28
  2. 2. Algebra Two-step equations

    Solve: 2x + 3 = 9

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

    Calculate the hypotenuse when a = 5cm and b = 11cm

    Answer: 12.08cm
  4. 4. Ratio Sharing in a ratio

    Divide 184 in the ratio 3:2:3

    Answer: 69, 46 and 69
  5. 5. Statistics Mean

    Find the mean of: 10, 17, 7, 15

    Answer: 12.25

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