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Cornerstone · Grades 3–5 Keystones #1 27 July 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 27 July 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄12 + 10⁄12

    Answer: 11⁄12
  2. 2. Algebra Two-step equations

    Solve: 2x - 10 = 2

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 6cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Share 42 in the ratio 4:3

    Answer: 24 and 18
  5. 5. Statistics Mean

    Calculate the mean of: 34, 20, 32, 32, 48, 12, 46

    Answer: 32

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