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Cornerstone · Grades 3–5 Keystones #1 3 November 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 3 November 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 9⁄12 + 1⁄12

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 3x - 14 = 28

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 8cm

    Answer: 12.81cm
  4. 4. Ratio Sharing in a ratio

    Share 96 in the ratio 1:2

    Answer: 32 and 64
  5. 5. Statistics Mean

    Find the mean of: 12, 20, 3, 9, 5

    Answer: 9.8

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