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Cornerstone · Grades 3–5 Keystones #1 27 April 2021 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 April 2021 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄7 + 4⁄6

    Answer: 20⁄21
  2. 2. Algebra Two-step equations

    Solve: 6x - 12 = 54

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

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

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

    Share 112 in the ratio 3:4

    Answer: 48 and 64
  5. 5. Statistics Mean

    Find the mean of: 14, 13, 8

    Answer: 11.666666666667

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