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Cornerstone · Grades 3–5 Keystones #1 15 June 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 15 June 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄5 + 1⁄4

    Answer: 21⁄20
  2. 2. Algebra Two-step equations

    Solve: 5x + 5 = 50

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

    Calculate the hypotenuse when a = 12cm and b = 11cm

    Answer: 16.28cm
  4. 4. Ratio Sharing in a ratio

    Share 30 in the ratio 1:4

    Answer: 6 and 24
  5. 5. Statistics Mean

    Find the mean of: 19, 17, 4, 4

    Answer: 11

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