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Cornerstone · Grades 3–5 Keystones #1 10 July 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 10 July 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄6 + 1⁄5

    Answer: 8⁄15
  2. 2. Algebra Two-step equations

    Solve: 2x + 4 = 28

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio Sharing in a ratio

    Share 75 in the ratio 4:1

    Answer: 60 and 15
  5. 5. Statistics Mean

    Find the mean of: 11, 14, 19, 12

    Answer: 14

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