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Cornerstone · Grades 3–5 Keystones #1 28 August 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 28 August 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 2⁄5

    Answer: 11⁄15
  2. 2. Algebra Two-step equations

    Solve: 4x - 7 = 53

    Answer: x = 15
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Share 84 in the ratio 1:2

    Answer: 28 and 56
  5. 5. Statistics Mean

    Find the mean of: 18, 5, 16

    Answer: 13

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