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Cornerstone · Grades 3–5 Keystones #1 14 April 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 14 April 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄8 + 1⁄8

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 3x + 6 = 36

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 13cm

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

    Share 39 in the ratio 2:1

    Answer: 26 and 13
  5. 5. Statistics Mean

    Calculate the mean of: 32, 36, 46, 37, 9, 40

    Answer: 33.3

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