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Cornerstone · Grades 3–5 Keystones #1 12 July 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 12 July 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄8 + 2⁄5

    Answer: 21⁄40
  2. 2. Algebra Two-step equations

    Solve: 3x - 16 = 23

    Answer: x = 13
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 8cm

    Answer: 13.6cm
  4. 4. Ratio Sharing in a ratio

    Share 57 in the ratio 2:1

    Answer: 38 and 19
  5. 5. Statistics Mean

    Calculate the mean of: 11, 35, 21, 38, 13, 46

    Answer: 27.3

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