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Cornerstone · Grades 3–5 Keystones #1 26 December 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 26 December 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄10 + 2⁄10

    Answer: 2⁄5
  2. 2. Algebra Two-step equations

    Solve: 3x + 10 = 34

    Answer: x = 8
  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 78 in the ratio 1:2

    Answer: 26 and 52
  5. 5. Statistics Mean

    Find the mean of: 9, 18, 14

    Answer: 13.666666666667