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Cornerstone · Grades 3–5 Keystones #1 3 May 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 3 May 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄12 + 3⁄12

    Answer: 11⁄12
  2. 2. Algebra Two-step equations

    Solve: 4x + 5 = 33

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

    Calculate the hypotenuse when a = 9cm and b = 4cm

    Answer: 9.85cm
  4. 4. Ratio Sharing in a ratio

    Divide 145 in the ratio 2:2:1

    Answer: 58, 58 and 29
  5. 5. Statistics Mean

    Find the mean of: 2, 12, 7, 18, 7

    Answer: 9.2

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