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Cornerstone · Grades 3–5 Keystones #1 30 August 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 30 August 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄8 + 5⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 4x + 6 = 54

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 15cm

    Answer: 15.81cm
  4. 4. Ratio Sharing in a ratio

    Share 133 in the ratio 4:3

    Answer: 76 and 57
  5. 5. Statistics Mean

    Calculate the mean of: 25, 34, 9, 44, 41, 47, 29, 24

    Answer: 31.6

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