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Cornerstone · Grades 3–5 Keystones #1 4 August 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 August 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄12 + 2⁄12

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

    Solve: 7x - 10 = 32

    Answer: x = 6
  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 42 in the ratio 1:2

    Answer: 14 and 28
  5. 5. Statistics Mean

    Calculate the mean of: 41, 46, 48, 12, 42, 13, 13

    Answer: 30.7

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