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Cornerstone · Grades 3–5 Keystones #1 9 March 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 9 March 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄5 + 1⁄5

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

    Solve: 7x - 6 = 22

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 7.81cm
  4. 4. Ratio Sharing in a ratio

    Divide 96 in the ratio 1:2:3

    Answer: 16, 32 and 48
  5. 5. Statistics Mean

    Calculate the mean of: 35, 45, 26, 37, 21, 39. Give your answer to 2 decimal places

    Answer: 33.83

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