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Cornerstone · Grades 3–5 Keystones #1 2 August 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 August 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 9⁄11 + 1⁄11

    Answer: 10⁄11
  2. 2. Algebra Two-step equations

    Solve: 7x + 7 = 91

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

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

    Answer: 11.31cm
  4. 4. Ratio Sharing in a ratio

    Divide 133 in the ratio 3:2:2

    Answer: 57, 38 and 38
  5. 5. Statistics Mean

    Find the mean of: 7, 5, 15, 20

    Answer: 11.75

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