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Cornerstone · Grades 3–5 Keystones #1 1 June 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 1 June 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 7⁄11 + 1⁄11

    Answer: 8⁄11
  2. 2. Algebra Two-step equations

    Solve: 2x - 5 = 17

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

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Divide 144 in the ratio 2:3:1

    Answer: 48, 72 and 24
  5. 5. Statistics Mean

    Find the mean of: 10, 15, 16, 11, 18

    Answer: 14

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