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

Five GCSE retrieval questions · 1 August 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 6x + 12 = 60

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 10.82cm
  4. 4. Ratio Sharing in a ratio

    Divide 77 in the ratio 3:1:3

    Answer: 33, 11 and 33
  5. 5. Statistics Mean

    Calculate the mean of: 39, 25, 6, 23, 9, 35, 9. Give your answer to 2 decimal places

    Answer: 20.86

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