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Cornerstone · Grades 3–5 Keystones #1 16 October 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 16 October 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄11 + 4⁄11

    Answer: 7⁄11
  2. 2. Algebra Two-step equations

    Solve: 3x + 6 = 39

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

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

    Answer: 7.07cm
  4. 4. Ratio Sharing in a ratio

    Divide 96 in the ratio 1:3:4

    Answer: 12, 36 and 48
  5. 5. Statistics Mean

    Calculate the mean of: 48, 33, 45, 9, 44, 36, 50, 34

    Answer: 37.4