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Cornerstone · Grades 3–5 Keystones #1 26 December 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 26 December 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄6 + 2⁄6

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

    Solve: 4x + 10 = 38

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 9cm

    Answer: 15cm
  4. 4. Ratio Sharing in a ratio

    Share 95 in the ratio 2:3

    Answer: 38 and 57
  5. 5. Statistics Mean

    Find the mean of: 18, 3, 20, 7

    Answer: 12

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