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Cornerstone · Grades 3–5 Keystones #1 4 May 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 May 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄5 + 3⁄4

    Answer: 27⁄20
  2. 2. Algebra Two-step equations

    Solve: 5x + 3 = 48

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 14cm

    Answer: 14.87cm
  4. 4. Ratio Sharing in a ratio

    Share 90 in the ratio 3:2

    Answer: 54 and 36
  5. 5. Statistics Mean

    Calculate the mean of: 39, 39, 42, 32, 34, 12, 30, 47

    Answer: 34.4

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