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Cornerstone · Grades 3–5 Keystones #1 5 July 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 5 July 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄5 + 5⁄6

    Answer: 49⁄30
  2. 2. Algebra Two-step equations

    Solve: 7x + 12 = 54

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 12cm

    Answer: 12.65cm
  4. 4. Ratio Sharing in a ratio

    Share 95 in the ratio 3:2

    Answer: 57 and 38
  5. 5. Statistics Mean

    Find the mean of: 3, 19, 11, 14, 16

    Answer: 12.6

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