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Cornerstone · Grades 3–5 Keystones #1 20 September 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 20 September 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 6⁄8 + 2⁄6

    Answer: 13⁄12
  2. 2. Algebra Two-step equations

    Solve: 7x + 8 = 64

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Share 49 in the ratio 4:3

    Answer: 28 and 21
  5. 5. Statistics Mean

    Find the mean of: 11, 17, 17, 13, 2

    Answer: 12

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