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Cornerstone · Grades 3–5 Keystones #1 23 March 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 March 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄8 + 2⁄7

    Answer: 51⁄56
  2. 2. Algebra Two-step equations

    Solve: 6x + 14 = 74

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

    Calculate the hypotenuse when a = 6cm and b = 4cm

    Answer: 7.21cm
  4. 4. Ratio Sharing in a ratio

    Share 51 in the ratio 1:2

    Answer: 17 and 34
  5. 5. Statistics Mean

    Find the mean of: 6, 12, 4, 4, 19

    Answer: 9

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