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Cornerstone · Grades 3–5 Keystones #1 12 July 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 12 July 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄6 + 2⁄6

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 3x - 17 = 28

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

    Calculate the hypotenuse when a = 5cm and b = 9cm

    Answer: 10.3cm
  4. 4. Ratio Sharing in a ratio

    Share 102 in the ratio 1:2

    Answer: 34 and 68
  5. 5. Statistics Mean

    Find the mean of: 2, 8, 10, 16, 16

    Answer: 10.4

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