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Cornerstone · Grades 3–5 Keystones #1 9 June 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 9 June 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄10 + 1⁄10

    Answer: 9⁄10
  2. 2. Algebra Two-step equations

    Solve: 5x - 8 = 67

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

    Calculate the hypotenuse when a = 5cm and b = 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Divide 180 in the ratio 3:4:3

    Answer: 54, 72 and 54
  5. 5. Statistics Mean

    Find the mean of: 11, 18, 5, 18, 18

    Answer: 14

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