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Cornerstone · Grades 3–5 Keystones #1 22 June 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 22 June 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄6 + 3⁄7

    Answer: 25⁄42
  2. 2. Algebra Two-step equations

    Solve: 7x - 18 = 73

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

    Calculate the hypotenuse when a = 11cm and b = 14cm

    Answer: 17.8cm
  4. 4. Ratio Sharing in a ratio

    Share 15 in the ratio 2:1

    Answer: 10 and 5
  5. 5. Statistics Mean

    Find the mean of: 10, 13, 2, 2, 4

    Answer: 6.2

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