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

Five GCSE retrieval questions · 1 March 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄7 + 1⁄4

    Answer: 15⁄28
  2. 2. Algebra Two-step equations

    Solve: 6x - 6 = 84

    Answer: x = 15
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 13cm

    Answer: 14.32cm
  4. 4. Ratio Sharing in a ratio

    Share 42 in the ratio 1:2

    Answer: 14 and 28
  5. 5. Statistics Mean

    Calculate the mean of: 14, 22, 14, 29, 24, 16, 12

    Answer: 18.7

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