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Cornerstone · Grades 3–5 Keystones #1 30 July 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 30 July 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄6 + 5⁄7

    Answer: 17⁄14
  2. 2. Algebra Two-step equations

    Solve: 7x + 4 = 39

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 14cm

    Answer: 14.56cm
  4. 4. Ratio Sharing in a ratio

    Share 90 in the ratio 3:2

    Answer: 54 and 36
  5. 5. Statistics Mean

    Find the mean of: 19, 19, 12, 17, 6

    Answer: 14.6

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