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Cornerstone · Grades 3–5 Keystones #1 15 August 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 15 August 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄11 + 5⁄11

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

    Solve: 2x - 18 = 8

    Answer: x = 13
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio Sharing in a ratio

    Divide 88 in the ratio 2:1:1

    Answer: 44, 22 and 22
  5. 5. Statistics Mean

    Find the mean of: 25, 2, 13, 8

    Answer: 12

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