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Cornerstone · Grades 3–5 Keystones #1 8 August 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 8 August 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄7 + 3⁄4

    Answer: 37⁄28
  2. 2. Algebra Two-step equations

    Solve: 8x - 19 = 37

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 20cm and 21cm

    Answer: 29cm
  4. 4. Ratio Sharing in a ratio

    Share 96 in the ratio 1:2

    Answer: 32 and 64
  5. 5. Statistics Mean

    Calculate the mean of: 26, 31, 24, 32, 21, 18, 43, 49

    Answer: 30.5

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