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

Five GCSE retrieval questions · 1 October 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄8 + 3⁄4

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

    Solve: 4x - 11 = 13

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 12cm

    Answer: 12.37cm
  4. 4. Ratio Sharing in a ratio

    Divide 126 in the ratio 2:1:4

    Answer: 36, 18 and 72
  5. 5. Statistics Mean

    Find the mean of: 11, 19, 10, 11

    Answer: 12.75

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