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Cornerstone · Grades 3–5 Keystones #1 6 May 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 6 May 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 10⁄12 + 1⁄12

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

    Solve: 8x - 20 = 12

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 14cm

    Answer: 14.32cm
  4. 4. Ratio Sharing in a ratio

    Share 54 in the ratio 1:2

    Answer: 18 and 36
  5. 5. Statistics Mean

    Calculate the mean of: 15, 16, 42, 17, 14, 41, 41

    Answer: 26.6

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