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Cornerstone · Grades 3–5 Keystones #1 28 December 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 28 December 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄6 + 2⁄3

    Answer: 3⁄2
  2. 2. Algebra Two-step equations

    Solve: 2x - 6 = 16

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

    Calculate the hypotenuse when a = 9cm and b = 5cm

    Answer: 10.3cm
  4. 4. Ratio Sharing in a ratio

    Share 45 in the ratio 1:4

    Answer: 9 and 36
  5. 5. Statistics Mean

    Calculate the mean of: 26, 50, 32, 20, 32, 50, 24

    Answer: 33.4

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