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Cornerstone · Grades 3–5 Keystones #1 23 November 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 November 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄10 + 1⁄10

    Answer: 7⁄10
  2. 2. Algebra Two-step equations

    Solve: 4x - 18 = -2

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio Sharing in a ratio

    Share 57 in the ratio 2:1

    Answer: 38 and 19
  5. 5. Statistics Mean

    Find the mean of: 19, 3, 14

    Answer: 12

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