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Cornerstone · Grades 3–5 Keystones #1 8 August 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 8 August 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄11 + 4⁄11

    Answer: 6⁄11
  2. 2. Algebra Two-step equations

    Solve: 3x - 8 = 13

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 13cm

    Answer: 16.4cm
  4. 4. Ratio Sharing in a ratio

    Share 50 in the ratio 4:1

    Answer: 40 and 10
  5. 5. Statistics Mean

    Find the mean of: 17, 4, 6, 7

    Answer: 8.5

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