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Cornerstone · Grades 3–5 Keystones #1 18 August 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 August 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄12 + 3⁄12

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 2x + 3 = 9

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

    Calculate the hypotenuse when a = 3cm and b = 14cm

    Answer: 14.32cm
  4. 4. Ratio Sharing in a ratio

    Divide 162 in the ratio 4:2:3

    Answer: 72, 36 and 54
  5. 5. Statistics Mean

    Calculate the mean of: 44, 36, 49, 39, 34, 48, 28, 33

    Answer: 38.9

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