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Cornerstone · Grades 3–5 Keystones #1 5 June 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 5 June 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄7 + 1⁄7

    Answer: 6⁄7
  2. 2. Algebra Two-step equations

    Solve: 7x - 10 = 67

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 12.08cm
  4. 4. Ratio Sharing in a ratio

    Share 35 in the ratio 4:1

    Answer: 28 and 7
  5. 5. Statistics Mean

    Calculate the mean of: 7, 9, 10, 33, 22, 11, 47. Give your answer to 2 decimal places

    Answer: 19.86

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