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Cornerstone · Grades 3–5 Keystones #1 27 July 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 July 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄5 + 5⁄6

    Answer: 31⁄30
  2. 2. Algebra Two-step equations

    Solve: 2x - 15 = 11

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

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Share 54 in the ratio 1:2

    Answer: 18 and 36
  5. 5. Statistics Mean

    Find the mean of: 15, 4, 8

    Answer: 9

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