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Cornerstone · Grades 3–5 Keystones #1 4 May 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 May 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄8 + 1⁄6

    Answer: 13⁄24
  2. 2. Algebra Two-step equations

    Solve: 5x + 5 = 60

    Answer: x = 11
  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 27 in the ratio 1:2

    Answer: 9 and 18
  5. 5. Statistics Mean

    Calculate the mean of: 17, 32, 21, 38, 5, 22

    Answer: 22.5

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