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Cornerstone · Grades 3–5 Keystones #1 2 April 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 April 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 7⁄11 + 2⁄11

    Answer: 9⁄11
  2. 2. Algebra Two-step equations

    Solve: 7x + 7 = 56

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

    Calculate the hypotenuse when a = 10cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 10.77cm
  4. 4. Ratio Sharing in a ratio

    Share 50 in the ratio 4:1

    Answer: 40 and 10
  5. 5. Statistics Mean

    Calculate the mean of: 43, 40, 15, 9, 31, 41, 38

    Answer: 31

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