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Cornerstone · Grades 3–5 Keystones #1 25 August 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 25 August 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄5 + 2⁄5

    Answer: 3⁄5
  2. 2. Algebra Two-step equations

    Solve: 7x + 13 = 62

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

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Share 126 in the ratio 4:3

    Answer: 72 and 54
  5. 5. Statistics Mean

    Calculate the mean of: 9, 46, 48, 12, 9, 14

    Answer: 23

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